{"assessment":{"best_window":{"end":"2026-12-18T18:05Z","end_local":"20:05","hours":1.5,"label":"marginal","mean_quality":0.48,"start":"2026-12-18T16:35Z","start_local":"18:35"},"cost":{"altitude":10.84,"clouds":0.0,"darkness":1.26,"moon":0.44},"formula":"astronomy = 100 * min(1, sky_hours / reference_hours) * peak_sky; overall = astronomy * score_weather / 100 (null when the weather is unknown)","hard_limit":null,"headline":"Astronomically barely \u2014 weather unknown","hourly":[{"alt":54,"cloud":null,"high":null,"iso":"2026-12-18T15:00Z","label":"unusable","low":null,"mid":null,"moon_alt":45,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"17:00","wind":null},{"alt":43,"cloud":null,"high":null,"iso":"2026-12-18T16:00Z","label":"marginal","low":null,"mid":null,"moon_alt":53,"precip":null,"q":0.31,"rh":null,"sky":"astronomical twilight","temp":null,"time":"18:00","wind":null},{"alt":32,"cloud":null,"high":null,"iso":"2026-12-18T17:00Z","label":"marginal","low":null,"mid":null,"moon_alt":57,"precip":null,"q":0.56,"rh":null,"sky":"night","temp":null,"time":"19:00","wind":null},{"alt":21,"cloud":null,"high":null,"iso":"2026-12-18T18:00Z","label":"marginal","low":null,"mid":null,"moon_alt":56,"precip":null,"q":0.3,"rh":null,"sky":"night","temp":null,"time":"20:00","wind":null},{"alt":10,"cloud":null,"high":null,"iso":"2026-12-18T19:00Z","label":"unusable","low":null,"mid":null,"moon_alt":51,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"21:00","wind":null},{"alt":0,"cloud":null,"high":null,"iso":"2026-12-18T20:00Z","label":"unusable","low":null,"mid":null,"moon_alt":43,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"22:00","wind":null},{"alt":-9,"cloud":null,"high":null,"iso":"2026-12-18T21:00Z","label":"unusable","low":null,"mid":null,"moon_alt":33,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":-16,"cloud":null,"high":null,"iso":"2026-12-18T22:00Z","label":"unusable","low":null,"mid":null,"moon_alt":22,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":-22,"cloud":null,"high":null,"iso":"2026-12-18T23:00Z","label":"unusable","low":null,"mid":null,"moon_alt":12,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":-25,"cloud":null,"high":null,"iso":"2026-12-19T00:00Z","label":"unusable","low":null,"mid":null,"moon_alt":1,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":-25,"cloud":null,"high":null,"iso":"2026-12-19T01:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-9,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":-22,"cloud":null,"high":null,"iso":"2026-12-19T02:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-18,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"04:00","wind":null},{"alt":-17,"cloud":null,"high":null,"iso":"2026-12-19T03:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-26,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"05:00","wind":null},{"alt":-10,"cloud":null,"high":null,"iso":"2026-12-19T04:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-32,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"06:00","wind":null},{"alt":-1,"cloud":null,"high":null,"iso":"2026-12-19T05:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-36,"precip":null,"q":0.0,"rh":null,"sky":"nautical twilight","temp":null,"time":"07:00","wind":null}],"peak_quality":0.58,"peak_sky":0.58,"quality_hours":0.98,"reasons":["the target being low or below 20\u00b0 cost 10.8 quality-hours","daylight and twilight cost 1.3 quality-hours","moonlight cost 0.4 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":14,"score_weather":null,"sky_hours":0.98,"verdict":"unknown","verdict_astronomy":"poor","weather_known":false,"windows":[{"end":"2026-12-18T15:25Z","end_local":"17:25","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-18T14:50Z","start_local":"16:50"},{"end":"2026-12-18T16:00Z","end_local":"18:00","hours":0.58,"label":"poor","mean_quality":0.1,"start":"2026-12-18T15:25Z","start_local":"17:25"},{"end":"2026-12-18T16:20Z","end_local":"18:20","hours":0.33,"label":"marginal","mean_quality":0.3,"start":"2026-12-18T16:00Z","start_local":"18:00"},{"end":"2026-12-18T16:35Z","end_local":"18:35","hours":0.25,"label":"poor","mean_quality":0.3,"start":"2026-12-18T16:20Z","start_local":"18:20"},{"end":"2026-12-18T18:05Z","end_local":"20:05","hours":1.5,"label":"marginal","mean_quality":0.48,"start":"2026-12-18T16:35Z","start_local":"18:35"},{"end":"2026-12-18T18:10Z","end_local":"20:10","hours":0.08,"label":"poor","mean_quality":0.28,"start":"2026-12-18T18:05Z","start_local":"20:05"},{"end":"2026-12-19T05:45Z","end_local":"07:45","hours":11.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-18T18:10Z","start_local":"20:10"}]},"calculation_version":"2026-10-10.1","forecast":[],"forecast_source":"none","forecast_updated_at":null,"limits":{"good_alt":30.0,"usable_alt":20.0},"night":{"dark_from":"2026-12-18T16:32:44Z","dark_hours":11.5,"dark_to":"2026-12-19T04:02:59Z","moon":{"illumination":0.673,"phase":"waxing gibbous","waxing":true},"moon_free_dark_hours":3.92,"moonrise":"2026-12-18T10:44:22Z","moonset":"2026-12-19T00:06:00Z","sunrise":"2026-12-19T05:43:29Z","sunset":"2026-12-18T14:52:15Z","twilight":{"astronomical":{"end":"2026-12-18T16:32:44Z","start":"2026-12-19T04:02:59Z"},"civil":{"end":"2026-12-18T15:23:50Z","start":"2026-12-19T05:11:54Z"},"nautical":{"end":"2026-12-18T15:58:53Z","start":"2026-12-19T04:36:50Z"}},"window_end":"2026-12-19T10:00:00Z","window_start":"2026-12-18T10:00:00Z"},"night_date":"2026-12-18","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":1.67,"alt":36.8,"t":"2026-12-18T16:35:00Z"},"dec":22.71085365,"dec_of_date":22.7866,"dec_str":"+22\u00b0 42' 39.1\"","good_hours":0.67,"limit_rise":"2026-12-19T06:59:31Z","limit_set":"2026-12-18T18:05:18Z","max_az_rate_deg_per_min":0.71,"moon_separation":71.4,"never_rises":false,"ra":300.18213726,"ra_of_date":300.4733,"ra_str":"20h 00m 43.7s","resolved":{"dec":22.71085365,"name":"HD 189733","ra":300.18213726,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=HD%20189733","source":"sesame","spectral_type":"K2V","type":"BY*","type_text":"BY Draconis variable \u2014 a spotted, rotating star","vmag":7.648},"summary":"Only 0.7 h above 30\u00b0, 1.6 h above 20\u00b0 \u2014 usable, at high airmass.","terrain":{"available":true,"behind_at":"2026-12-18T19:59:06Z","blocked_dark_hours":0,"clears_at":"2026-12-19T05:11:00Z","rise_az":108.2},"track":[{"above_terrain":true,"airmass":1.26,"alt":52.64,"az":108.2,"t":"2026-12-18T10:00:00Z","terrain":-0.98},{"above_terrain":true,"airmass":1.24,"alt":53.53,"az":109.4,"t":"2026-12-18T10:05:00Z","terrain":-1.17},{"above_terrain":true,"airmass":1.23,"alt":54.41,"az":110.7,"t":"2026-12-18T10:10:00Z","terrain":-1.28},{"above_terrain":true,"airmass":1.22,"alt":55.28,"az":112.0,"t":"2026-12-18T10:15:00Z","terrain":-1.38},{"above_terrain":true,"airmass":1.2,"alt":56.14,"az":113.4,"t":"2026-12-18T10:20:00Z","terrain":-1.51},{"above_terrain":true,"airmass":1.19,"alt":57.0,"az":114.8,"t":"2026-12-18T10:25:00Z","terrain":-1.53},{"above_terrain":true,"airmass":1.18,"alt":57.84,"az":116.3,"t":"2026-12-18T10:30:00Z","terrain":-1.51},{"above_terrain":true,"airmass":1.17,"alt":58.68,"az":117.8,"t":"2026-12-18T10:35:00Z","terrain":-1.47},{"above_terrain":true,"airmass":1.16,"alt":59.5,"az":119.4,"t":"2026-12-18T10:40:00Z","terrain":-1.39},{"above_terrain":true,"airmass":1.15,"alt":60.31,"az":121.0,"t":"2026-12-18T10:45:00Z","terrain":-1.25},{"above_terrain":true,"airmass":1.14,"alt":61.1,"az":122.7,"t":"2026-12-18T10:50:00Z","terrain":-1.33},{"above_terrain":true,"airmass":1.13,"alt":61.88,"az":124.5,"t":"2026-12-18T10:55:00Z","terrain":-1.56},{"above_terrain":true,"airmass":1.13,"alt":62.65,"az":126.4,"t":"2026-12-18T11:00:00Z","terrain":-1.58},{"above_terrain":true,"airmass":1.12,"alt":63.39,"az":128.3,"t":"2026-12-18T11:05:00Z","terrain":-1.32},{"above_terrain":true,"airmass":1.11,"alt":64.11,"az":130.4,"t":"2026-12-18T11:10:00Z","terrain":-1.6},{"above_terrain":true,"airmass":1.1,"alt":64.82,"az":132.5,"t":"2026-12-18T11:15:00Z","terrain":-1.65},{"above_terrain":true,"airmass":1.1,"alt":65.49,"az":134.7,"t":"2026-12-18T11:20:00Z","terrain":-1.38},{"above_terrain":true,"airmass":1.09,"alt":66.15,"az":137.0,"t":"2026-12-18T11:25:00Z","terrain":-1.23},{"above_terrain":true,"airmass":1.09,"alt":66.77,"az":139.5,"t":"2026-12-18T11:30:00Z","terrain":-1.33},{"above_terrain":true,"airmass":1.08,"alt":67.36,"az":142.0,"t":"2026-12-18T11:35:00Z","terrain":-1.32},{"above_terrain":true,"airmass":1.08,"alt":67.92,"az":144.7,"t":"2026-12-18T11:40:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.07,"alt":68.44,"az":147.5,"t":"2026-12-18T11:45:00Z","terrain":-1.36},{"above_terrain":true,"airmass":1.07,"alt":68.93,"az":150.3,"t":"2026-12-18T11:50:00Z","terrain":-1.19},{"above_terrain":true,"airmass":1.07,"alt":69.37,"az":153.3,"t":"2026-12-18T11:55:00Z","terrain":-0.96},{"above_terrain":true,"airmass":1.07,"alt":69.76,"az":156.5,"t":"2026-12-18T12:00:00Z","terrain":-1.18},{"above_terrain":true,"airmass":1.06,"alt":70.11,"az":159.7,"t":"2026-12-18T12:05:00Z","terrain":-1.05},{"above_terrain":true,"airmass":1.06,"alt":70.41,"az":163.0,"t":"2026-12-18T12:10:00Z","terrain":-1.36},{"above_terrain":true,"airmass":1.06,"alt":70.66,"az":166.4,"t":"2026-12-18T12:15:00Z","terrain":-1.21},{"above_terrain":true,"airmass":1.06,"alt":70.85,"az":169.8,"t":"2026-12-18T12:20:00Z","terrain":-0.63},{"above_terrain":true,"airmass":1.06,"alt":70.99,"az":173.3,"t":"2026-12-18T12:25:00Z","terrain":-0.47},{"above_terrain":true,"airmass":1.06,"alt":71.07,"az":176.9,"t":"2026-12-18T12:30:00Z","terrain":-0.37},{"above_terrain":true,"airmass":1.06,"alt":71.09,"az":180.4,"t":"2026-12-18T12:35:00Z","terrain":-0.58},{"above_terrain":true,"airmass":1.06,"alt":71.06,"az":184.0,"t":"2026-12-18T12:40:00Z","terrain":-0.6},{"above_terrain":true,"airmass":1.06,"alt":70.96,"az":187.5,"t":"2026-12-18T12:45:00Z","terrain":-0.64},{"above_terrain":true,"airmass":1.06,"alt":70.81,"az":191.0,"t":"2026-12-18T12:50:00Z","terrain":-0.46},{"above_terrain":true,"airmass":1.06,"alt":70.6,"az":194.5,"t":"2026-12-18T12:55:00Z","terrain":-0.46},{"above_terrain":true,"airmass":1.06,"alt":70.34,"az":197.9,"t":"2026-12-18T13:00:00Z","terrain":-0.38},{"above_terrain":true,"airmass":1.06,"alt":70.03,"az":201.1,"t":"2026-12-18T13:05:00Z","terrain":-0.52},{"above_terrain":true,"airmass":1.07,"alt":69.67,"az":204.3,"t":"2026-12-18T13:10:00Z","terrain":-0.44},{"above_terrain":true,"airmass":1.07,"alt":69.26,"az":207.4,"t":"2026-12-18T13:15:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.07,"alt":68.81,"az":210.4,"t":"2026-12-18T13:20:00Z","terrain":0.72},{"above_terrain":true,"airmass":1.08,"alt":68.32,"az":213.2,"t":"2026-12-18T13:25:00Z","terrain":0.55},{"above_terrain":true,"airmass":1.08,"alt":67.78,"az":216.0,"t":"2026-12-18T13:30:00Z","terrain":0.66},{"above_terrain":true,"airmass":1.08,"alt":67.22,"az":218.6,"t":"2026-12-18T13:35:00Z","terrain":1.26},{"above_terrain":true,"airmass":1.09,"alt":66.62,"az":221.1,"t":"2026-12-18T13:40:00Z","terrain":1.12},{"above_terrain":true,"airmass":1.09,"alt":65.99,"az":223.5,"t":"2026-12-18T13:45:00Z","terrain":0.5},{"above_terrain":true,"airmass":1.1,"alt":65.33,"az":225.8,"t":"2026-12-18T13:50:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.11,"alt":64.64,"az":228.1,"t":"2026-12-18T13:55:00Z","terrain":1.14},{"above_terrain":true,"airmass":1.11,"alt":63.94,"az":230.2,"t":"2026-12-18T14:00:00Z","terrain":1.11},{"above_terrain":true,"airmass":1.12,"alt":63.21,"az":232.2,"t":"2026-12-18T14:05:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.13,"alt":62.46,"az":234.1,"t":"2026-12-18T14:10:00Z","terrain":0.83},{"above_terrain":true,"airmass":1.14,"alt":61.69,"az":235.9,"t":"2026-12-18T14:15:00Z","terrain":0.79},{"above_terrain":true,"airmass":1.14,"alt":60.91,"az":237.7,"t":"2026-12-18T14:20:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.15,"alt":60.11,"az":239.4,"t":"2026-12-18T14:25:00Z","terrain":0.63},{"above_terrain":true,"airmass":1.16,"alt":59.3,"az":241.0,"t":"2026-12-18T14:30:00Z","terrain":0.75},{"above_terrain":true,"airmass":1.17,"alt":58.47,"az":242.6,"t":"2026-12-18T14:35:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.18,"alt":57.64,"az":244.1,"t":"2026-12-18T14:40:00Z","terrain":0.95},{"above_terrain":true,"airmass":1.19,"alt":56.79,"az":245.6,"t":"2026-12-18T14:45:00Z","terrain":1.1},{"above_terrain":true,"airmass":1.21,"alt":55.93,"az":247.0,"t":"2026-12-18T14:50:00Z","terrain":1.03},{"above_terrain":true,"airmass":1.22,"alt":55.07,"az":248.3,"t":"2026-12-18T14:55:00Z","terrain":0.55},{"above_terrain":true,"airmass":1.23,"alt":54.19,"az":249.6,"t":"2026-12-18T15:00:00Z","terrain":0.55},{"above_terrain":true,"airmass":1.25,"alt":53.31,"az":250.9,"t":"2026-12-18T15:05:00Z","terrain":0.55},{"above_terrain":true,"airmass":1.26,"alt":52.42,"az":252.1,"t":"2026-12-18T15:10:00Z","terrain":0.21},{"above_terrain":true,"airmass":1.28,"alt":51.53,"az":253.3,"t":"2026-12-18T15:15:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.29,"alt":50.63,"az":254.5,"t":"2026-12-18T15:20:00Z","terrain":0.2},{"above_terrain":true,"airmass":1.31,"alt":49.73,"az":255.6,"t":"2026-12-18T15:25:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.33,"alt":48.82,"az":256.7,"t":"2026-12-18T15:30:00Z","terrain":0.42},{"above_terrain":true,"airmass":1.35,"alt":47.91,"az":257.7,"t":"2026-12-18T15:35:00Z","terrain":0.38},{"above_terrain":true,"airmass":1.37,"alt":46.99,"az":258.8,"t":"2026-12-18T15:40:00Z","terrain":0.45},{"above_terrain":true,"airmass":1.39,"alt":46.07,"az":259.8,"t":"2026-12-18T15:45:00Z","terrain":0.54},{"above_terrain":true,"airmass":1.41,"alt":45.15,"az":260.8,"t":"2026-12-18T15:50:00Z","terrain":0.78},{"above_terrain":true,"airmass":1.43,"alt":44.22,"az":261.8,"t":"2026-12-18T15:55:00Z","terrain":0.95},{"above_terrain":true,"airmass":1.46,"alt":43.29,"az":262.7,"t":"2026-12-18T16:00:00Z","terrain":0.86},{"above_terrain":true,"airmass":1.48,"alt":42.36,"az":263.7,"t":"2026-12-18T16:05:00Z","terrain":0.62},{"above_terrain":true,"airmass":1.51,"alt":41.43,"az":264.6,"t":"2026-12-18T16:10:00Z","terrain":0.44},{"above_terrain":true,"airmass":1.54,"alt":40.5,"az":265.5,"t":"2026-12-18T16:15:00Z","terrain":0.43},{"above_terrain":true,"airmass":1.57,"alt":39.57,"az":266.4,"t":"2026-12-18T16:20:00Z","terrain":0.51},{"above_terrain":true,"airmass":1.6,"alt":38.63,"az":267.3,"t":"2026-12-18T16:25:00Z","terrain":0.59},{"above_terrain":true,"airmass":1.63,"alt":37.7,"az":268.1,"t":"2026-12-18T16:30:00Z","terrain":0.66},{"above_terrain":true,"airmass":1.67,"alt":36.76,"az":269.0,"t":"2026-12-18T16:35:00Z","terrain":0.75},{"above_terrain":true,"airmass":1.71,"alt":35.83,"az":269.8,"t":"2026-12-18T16:40:00Z","terrain":0.87},{"above_terrain":true,"airmass":1.74,"alt":34.89,"az":270.6,"t":"2026-12-18T16:45:00Z","terrain":0.82},{"above_terrain":true,"airmass":1.79,"alt":33.95,"az":271.5,"t":"2026-12-18T16:50:00Z","terrain":0.61},{"above_terrain":true,"airmass":1.83,"alt":33.02,"az":272.3,"t":"2026-12-18T16:55:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.88,"alt":32.08,"az":273.1,"t":"2026-12-18T17:00:00Z","terrain":0.13},{"above_terrain":true,"airmass":1.93,"alt":31.15,"az":273.9,"t":"2026-12-18T17:05:00Z","terrain":-0.01},{"above_terrain":true,"airmass":1.98,"alt":30.22,"az":274.7,"t":"2026-12-18T17:10:00Z","terrain":0.05},{"above_terrain":true,"airmass":2.04,"alt":29.28,"az":275.5,"t":"2026-12-18T17:15:00Z","terrain":0.04},{"above_terrain":true,"airmass":2.1,"alt":28.35,"az":276.2,"t":"2026-12-18T17:20:00Z","terrain":-0.04},{"above_terrain":true,"airmass":2.16,"alt":27.42,"az":277.0,"t":"2026-12-18T17:25:00Z","terrain":-0.14},{"above_terrain":true,"airmass":2.23,"alt":26.5,"az":277.8,"t":"2026-12-18T17:30:00Z","terrain":-0.09},{"above_terrain":true,"airmass":2.31,"alt":25.57,"az":278.6,"t":"2026-12-18T17:35:00Z","terrain":-0.05},{"above_terrain":true,"airmass":2.39,"alt":24.64,"az":279.3,"t":"2026-12-18T17:40:00Z","terrain":-0.06},{"above_terrain":true,"airmass":2.47,"alt":23.72,"az":280.1,"t":"2026-12-18T17:45:00Z","terrain":-0.12},{"above_terrain":true,"airmass":2.57,"alt":22.8,"az":280.8,"t":"2026-12-18T17:50:00Z","terrain":0.01},{"above_terrain":true,"airmass":2.67,"alt":21.88,"az":281.6,"t":"2026-12-18T17:55:00Z","terrain":-0.07},{"above_terrain":true,"airmass":2.78,"alt":20.97,"az":282.4,"t":"2026-12-18T18:00:00Z","terrain":-0.09},{"above_terrain":true,"airmass":2.9,"alt":20.06,"az":283.1,"t":"2026-12-18T18:05:00Z","terrain":0.01},{"above_terrain":true,"airmass":3.03,"alt":19.14,"az":283.9,"t":"2026-12-18T18:10:00Z","terrain":0.1},{"above_terrain":true,"airmass":3.17,"alt":18.24,"az":284.6,"t":"2026-12-18T18:15:00Z","terrain":0.19},{"above_terrain":true,"airmass":3.32,"alt":17.33,"az":285.4,"t":"2026-12-18T18:20:00Z","terrain":0.23},{"above_terrain":true,"airmass":3.5,"alt":16.43,"az":286.1,"t":"2026-12-18T18:25:00Z","terrain":0.24},{"above_terrain":true,"airmass":3.69,"alt":15.54,"az":286.9,"t":"2026-12-18T18:30:00Z","terrain":0.36},{"above_terrain":true,"airmass":3.9,"alt":14.64,"az":287.7,"t":"2026-12-18T18:35:00Z","terrain":0.24},{"above_terrain":true,"airmass":4.14,"alt":13.75,"az":288.4,"t":"2026-12-18T18:40:00Z","terrain":0.17},{"above_terrain":true,"airmass":4.41,"alt":12.87,"az":289.2,"t":"2026-12-18T18:45:00Z","terrain":0.2},{"above_terrain":true,"airmass":4.72,"alt":11.98,"az":289.9,"t":"2026-12-18T18:50:00Z","terrain":0.28},{"above_terrain":true,"airmass":5.06,"alt":11.11,"az":290.7,"t":"2026-12-18T18:55:00Z","terrain":0.43},{"above_terrain":true,"airmass":5.47,"alt":10.23,"az":291.5,"t":"2026-12-18T19:00:00Z","terrain":0.52},{"above_terrain":true,"airmass":5.94,"alt":9.36,"az":292.3,"t":"2026-12-18T19:05:00Z","terrain":0.48},{"above_terrain":true,"airmass":6.49,"alt":8.5,"az":293.0,"t":"2026-12-18T19:10:00Z","terrain":0.28},{"above_terrain":true,"airmass":7.15,"alt":7.64,"az":293.8,"t":"2026-12-18T19:15:00Z","terrain":0.26},{"above_terrain":true,"airmass":7.94,"alt":6.79,"az":294.6,"t":"2026-12-18T19:20:00Z","terrain":0.24},{"above_terrain":true,"airmass":8.92,"alt":5.94,"az":295.4,"t":"2026-12-18T19:25:00Z","terrain":0.27},{"above_terrain":true,"airmass":10.14,"alt":5.1,"az":296.2,"t":"2026-12-18T19:30:00Z","terrain":0.32},{"above_terrain":true,"airmass":11.72,"alt":4.26,"az":297.0,"t":"2026-12-18T19:35:00Z","terrain":0.26},{"above_terrain":true,"airmass":13.79,"alt":3.43,"az":297.8,"t":"2026-12-18T19:40:00Z","terrain":0.15},{"above_terrain":true,"airmass":16.62,"alt":2.6,"az":298.6,"t":"2026-12-18T19:45:00Z","terrain":0.15},{"above_terrain":true,"airmass":20.63,"alt":1.79,"az":299.4,"t":"2026-12-18T19:50:00Z","terrain":0.25},{"above_terrain":true,"airmass":26.54,"alt":0.97,"az":300.2,"t":"2026-12-18T19:55:00Z","terrain":0.36},{"above_terrain":false,"airmass":35.51,"alt":0.17,"az":301.1,"t":"2026-12-18T20:00:00Z","terrain":0.3},{"above_terrain":false,"airmass":null,"alt":-0.63,"az":301.9,"t":"2026-12-18T20:05:00Z","terrain":0.1},{"above_terrain":false,"airmass":null,"alt":-1.42,"az":302.7,"t":"2026-12-18T20:10:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-2.2,"az":303.6,"t":"2026-12-18T20:15:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-2.98,"az":304.5,"t":"2026-12-18T20:20:00Z","terrain":-0.19},{"above_terrain":false,"airmass":null,"alt":-3.75,"az":305.3,"t":"2026-12-18T20:25:00Z","terrain":-0.25},{"above_terrain":false,"airmass":null,"alt":-4.51,"az":306.2,"t":"2026-12-18T20:30:00Z","terrain":-0.1},{"above_terrain":false,"airmass":null,"alt":-5.26,"az":307.1,"t":"2026-12-18T20:35:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-6.0,"az":308.0,"t":"2026-12-18T20:40:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-6.73,"az":308.9,"t":"2026-12-18T20:45:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-7.46,"az":309.8,"t":"2026-12-18T20:50:00Z","terrain":0.21},{"above_terrain":false,"airmass":null,"alt":-8.17,"az":310.7,"t":"2026-12-18T20:55:00Z","terrain":0.32},{"above_terrain":false,"airmass":null,"alt":-8.88,"az":311.6,"t":"2026-12-18T21:00:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-9.57,"az":312.5,"t":"2026-12-18T21:05:00Z","terrain":0.21},{"above_terrain":false,"airmass":null,"alt":-10.26,"az":313.5,"t":"2026-12-18T21:10:00Z","terrain":0.37},{"above_terrain":false,"airmass":null,"alt":-10.93,"az":314.4,"t":"2026-12-18T21:15:00Z","terrain":0.51},{"above_terrain":false,"airmass":null,"alt":-11.59,"az":315.4,"t":"2026-12-18T21:20:00Z","terrain":0.53},{"above_terrain":false,"airmass":null,"alt":-12.24,"az":316.4,"t":"2026-12-18T21:25:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-12.88,"az":317.4,"t":"2026-12-18T21:30:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-13.51,"az":318.4,"t":"2026-12-18T21:35:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-14.13,"az":319.4,"t":"2026-12-18T21:40:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-14.73,"az":320.4,"t":"2026-12-18T21:45:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-15.32,"az":321.4,"t":"2026-12-18T21:50:00Z","terrain":-0.03},{"above_terrain":false,"airmass":null,"alt":-15.9,"az":322.5,"t":"2026-12-18T21:55:00Z","terrain":0.15},{"above_terrain":false,"airmass":null,"alt":-16.46,"az":323.5,"t":"2026-12-18T22:00:00Z","terrain":-0.07},{"above_terrain":false,"airmass":null,"alt":-17.01,"az":324.6,"t":"2026-12-18T22:05:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-17.55,"az":325.6,"t":"2026-12-18T22:10:00Z","terrain":-0.22},{"above_terrain":false,"airmass":null,"alt":-18.07,"az":326.7,"t":"2026-12-18T22:15:00Z","terrain":-0.35},{"above_terrain":false,"airmass":null,"alt":-18.57,"az":327.8,"t":"2026-12-18T22:20:00Z","terrain":-0.26},{"above_terrain":false,"airmass":null,"alt":-19.06,"az":328.9,"t":"2026-12-18T22:25:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-19.54,"az":330.0,"t":"2026-12-18T22:30:00Z","terrain":-0.35},{"above_terrain":false,"airmass":null,"alt":-20.0,"az":331.2,"t":"2026-12-18T22:35:00Z","terrain":-0.35},{"above_terrain":false,"airmass":null,"alt":-20.44,"az":332.3,"t":"2026-12-18T22:40:00Z","terrain":-0.13},{"above_terrain":false,"airmass":null,"alt":-20.87,"az":333.5,"t":"2026-12-18T22:45:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-21.28,"az":334.6,"t":"2026-12-18T22:50:00Z","terrain":-0.45},{"above_terrain":false,"airmass":null,"alt":-21.67,"az":335.8,"t":"2026-12-18T22:55:00Z","terrain":-0.78},{"above_terrain":false,"airmass":null,"alt":-22.04,"az":337.0,"t":"2026-12-18T23:00:00Z","terrain":-0.73},{"above_terrain":false,"airmass":null,"alt":-22.4,"az":338.2,"t":"2026-12-18T23:05:00Z","terrain":-0.51},{"above_terrain":false,"airmass":null,"alt":-22.74,"az":339.3,"t":"2026-12-18T23:10:00Z","terrain":-0.67},{"above_terrain":false,"airmass":null,"alt":-23.06,"az":340.6,"t":"2026-12-18T23:15:00Z","terrain":-0.48},{"above_terrain":false,"airmass":null,"alt":-23.36,"az":341.8,"t":"2026-12-18T23:20:00Z","terrain":-0.48},{"above_terrain":false,"airmass":null,"alt":-23.65,"az":343.0,"t":"2026-12-18T23:25:00Z","terrain":-0.39},{"above_terrain":false,"airmass":null,"alt":-23.91,"az":344.2,"t":"2026-12-18T23:30:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-24.16,"az":345.5,"t":"2026-12-18T23:35:00Z","terrain":-0.47},{"above_terrain":false,"airmass":null,"alt":-24.38,"az":346.7,"t":"2026-12-18T23:40:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-24.59,"az":347.9,"t":"2026-12-18T23:45:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-24.77,"az":349.2,"t":"2026-12-18T23:50:00Z","terrain":0.03},{"above_terrain":false,"airmass":null,"alt":-24.94,"az":350.5,"t":"2026-12-18T23:55:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-25.08,"az":351.7,"t":"2026-12-19T00:00:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-25.21,"az":353.0,"t":"2026-12-19T00:05:00Z","terrain":0.5},{"above_terrain":false,"airmass":null,"alt":-25.31,"az":354.3,"t":"2026-12-19T00:10:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-25.39,"az":355.5,"t":"2026-12-19T00:15:00Z","terrain":0.69},{"above_terrain":false,"airmass":null,"alt":-25.46,"az":356.8,"t":"2026-12-19T00:20:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-25.5,"az":358.1,"t":"2026-12-19T00:25:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-25.52,"az":359.4,"t":"2026-12-19T00:30:00Z","terrain":0.57},{"above_terrain":false,"airmass":null,"alt":-25.52,"az":0.7,"t":"2026-12-19T00:35:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-25.5,"az":1.9,"t":"2026-12-19T00:40:00Z","terrain":0.13},{"above_terrain":false,"airmass":null,"alt":-25.45,"az":3.2,"t":"2026-12-19T00:45:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-25.39,"az":4.5,"t":"2026-12-19T00:50:00Z","terrain":-0.35},{"above_terrain":false,"airmass":null,"alt":-25.31,"az":5.8,"t":"2026-12-19T00:55:00Z","terrain":-0.55},{"above_terrain":false,"airmass":null,"alt":-25.2,"az":7.0,"t":"2026-12-19T01:00:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-25.08,"az":8.3,"t":"2026-12-19T01:05:00Z","terrain":-0.49},{"above_terrain":false,"airmass":null,"alt":-24.93,"az":9.6,"t":"2026-12-19T01:10:00Z","terrain":-0.63},{"above_terrain":false,"airmass":null,"alt":-24.77,"az":10.8,"t":"2026-12-19T01:15:00Z","terrain":-0.43},{"above_terrain":false,"airmass":null,"alt":-24.58,"az":12.1,"t":"2026-12-19T01:20:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-24.37,"az":13.3,"t":"2026-12-19T01:25:00Z","terrain":-0.01},{"above_terrain":false,"airmass":null,"alt":-24.15,"az":14.6,"t":"2026-12-19T01:30:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-23.9,"az":15.8,"t":"2026-12-19T01:35:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-23.64,"az":17.1,"t":"2026-12-19T01:40:00Z","terrain":0.47},{"above_terrain":false,"airmass":null,"alt":-23.35,"az":18.3,"t":"2026-12-19T01:45:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-23.05,"az":19.5,"t":"2026-12-19T01:50:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-22.73,"az":20.7,"t":"2026-12-19T01:55:00Z","terrain":0.68},{"above_terrain":false,"airmass":null,"alt":-22.39,"az":21.9,"t":"2026-12-19T02:00:00Z","terrain":0.96},{"above_terrain":false,"airmass":null,"alt":-22.03,"az":23.1,"t":"2026-12-19T02:05:00Z","terrain":1.14},{"above_terrain":false,"airmass":null,"alt":-21.66,"az":24.3,"t":"2026-12-19T02:10:00Z","terrain":1.0},{"above_terrain":false,"airmass":null,"alt":-21.26,"az":25.4,"t":"2026-12-19T02:15:00Z","terrain":1.27},{"above_terrain":false,"airmass":null,"alt":-20.85,"az":26.6,"t":"2026-12-19T02:20:00Z","terrain":1.31},{"above_terrain":false,"airmass":null,"alt":-20.43,"az":27.7,"t":"2026-12-19T02:25:00Z","terrain":1.21},{"above_terrain":false,"airmass":null,"alt":-19.98,"az":28.9,"t":"2026-12-19T02:30:00Z","terrain":1.03},{"above_terrain":false,"airmass":null,"alt":-19.52,"az":30.0,"t":"2026-12-19T02:35:00Z","terrain":1.15},{"above_terrain":false,"airmass":null,"alt":-19.05,"az":31.1,"t":"2026-12-19T02:40:00Z","terrain":1.31},{"above_terrain":false,"airmass":null,"alt":-18.55,"az":32.2,"t":"2026-12-19T02:45:00Z","terrain":1.26},{"above_terrain":false,"airmass":null,"alt":-18.05,"az":33.3,"t":"2026-12-19T02:50:00Z","terrain":0.82},{"above_terrain":false,"airmass":null,"alt":-17.53,"az":34.4,"t":"2026-12-19T02:55:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-16.99,"az":35.5,"t":"2026-12-19T03:00:00Z","terrain":0.04},{"above_terrain":false,"airmass":null,"alt":-16.44,"az":36.5,"t":"2026-12-19T03:05:00Z","terrain":-0.03},{"above_terrain":false,"airmass":null,"alt":-15.88,"az":37.6,"t":"2026-12-19T03:10:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-15.3,"az":38.6,"t":"2026-12-19T03:15:00Z","terrain":-0.18},{"above_terrain":false,"airmass":null,"alt":-14.71,"az":39.6,"t":"2026-12-19T03:20:00Z","terrain":-0.09},{"above_terrain":false,"airmass":null,"alt":-14.11,"az":40.7,"t":"2026-12-19T03:25:00Z","terrain":-0.0},{"above_terrain":false,"airmass":null,"alt":-13.49,"az":41.7,"t":"2026-12-19T03:30:00Z","terrain":0.09},{"above_terrain":false,"airmass":null,"alt":-12.86,"az":42.7,"t":"2026-12-19T03:35:00Z","terrain":0.21},{"above_terrain":false,"airmass":null,"alt":-12.22,"az":43.6,"t":"2026-12-19T03:40:00Z","terrain":0.35},{"above_terrain":false,"airmass":null,"alt":-11.57,"az":44.6,"t":"2026-12-19T03:45:00Z","terrain":0.52},{"above_terrain":false,"airmass":null,"alt":-10.91,"az":45.6,"t":"2026-12-19T03:50:00Z","terrain":0.63},{"above_terrain":false,"airmass":null,"alt":-10.23,"az":46.5,"t":"2026-12-19T03:55:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-9.55,"az":47.5,"t":"2026-12-19T04:00:00Z","terrain":0.57},{"above_terrain":false,"airmass":null,"alt":-8.85,"az":48.4,"t":"2026-12-19T04:05:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-8.15,"az":49.3,"t":"2026-12-19T04:10:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-7.43,"az":50.3,"t":"2026-12-19T04:15:00Z","terrain":0.43},{"above_terrain":false,"airmass":null,"alt":-6.71,"az":51.2,"t":"2026-12-19T04:20:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-5.97,"az":52.1,"t":"2026-12-19T04:25:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-5.23,"az":53.0,"t":"2026-12-19T04:30:00Z","terrain":0.83},{"above_terrain":false,"airmass":null,"alt":-4.48,"az":53.8,"t":"2026-12-19T04:35:00Z","terrain":0.97},{"above_terrain":false,"airmass":null,"alt":-3.72,"az":54.7,"t":"2026-12-19T04:40:00Z","terrain":1.06},{"above_terrain":false,"airmass":null,"alt":-2.95,"az":55.6,"t":"2026-12-19T04:45:00Z","terrain":1.06},{"above_terrain":false,"airmass":null,"alt":-2.18,"az":56.4,"t":"2026-12-19T04:50:00Z","terrain":1.06},{"above_terrain":false,"airmass":null,"alt":-1.39,"az":57.3,"t":"2026-12-19T04:55:00Z","terrain":1.12},{"above_terrain":false,"airmass":null,"alt":-0.6,"az":58.1,"t":"2026-12-19T05:00:00Z","terrain":1.24},{"above_terrain":false,"airmass":35.13,"alt":0.2,"az":59.0,"t":"2026-12-19T05:05:00Z","terrain":1.21},{"above_terrain":false,"airmass":26.29,"alt":1.0,"az":59.8,"t":"2026-12-19T05:10:00Z","terrain":1.18},{"above_terrain":true,"airmass":20.47,"alt":1.81,"az":60.6,"t":"2026-12-19T05:15:00Z","terrain":1.12},{"above_terrain":true,"airmass":16.51,"alt":2.63,"az":61.4,"t":"2026-12-19T05:20:00Z","terrain":1.06},{"above_terrain":true,"airmass":13.71,"alt":3.46,"az":62.2,"t":"2026-12-19T05:25:00Z","terrain":0.99},{"above_terrain":true,"airmass":11.65,"alt":4.29,"az":63.0,"t":"2026-12-19T05:30:00Z","terrain":0.9},{"above_terrain":true,"airmass":10.1,"alt":5.13,"az":63.8,"t":"2026-12-19T05:35:00Z","terrain":0.79},{"above_terrain":true,"airmass":8.88,"alt":5.97,"az":64.6,"t":"2026-12-19T05:40:00Z","terrain":0.77},{"above_terrain":true,"airmass":7.91,"alt":6.82,"az":65.4,"t":"2026-12-19T05:45:00Z","terrain":0.8},{"above_terrain":true,"airmass":7.12,"alt":7.67,"az":66.2,"t":"2026-12-19T05:50:00Z","terrain":0.85},{"above_terrain":true,"airmass":6.47,"alt":8.53,"az":67.0,"t":"2026-12-19T05:55:00Z","terrain":0.93},{"above_terrain":true,"airmass":5.92,"alt":9.39,"az":67.8,"t":"2026-12-19T06:00:00Z","terrain":0.98},{"above_terrain":true,"airmass":5.45,"alt":10.26,"az":68.5,"t":"2026-12-19T06:05:00Z","terrain":1.02},{"above_terrain":true,"airmass":5.05,"alt":11.14,"az":69.3,"t":"2026-12-19T06:10:00Z","terrain":1.1},{"above_terrain":true,"airmass":4.7,"alt":12.01,"az":70.1,"t":"2026-12-19T06:15:00Z","terrain":1.22},{"above_terrain":true,"airmass":4.4,"alt":12.9,"az":70.8,"t":"2026-12-19T06:20:00Z","terrain":1.25},{"above_terrain":true,"airmass":4.13,"alt":13.78,"az":71.6,"t":"2026-12-19T06:25:00Z","terrain":1.22},{"above_terrain":true,"airmass":3.89,"alt":14.67,"az":72.4,"t":"2026-12-19T06:30:00Z","terrain":1.12},{"above_terrain":true,"airmass":3.68,"alt":15.57,"az":73.1,"t":"2026-12-19T06:35:00Z","terrain":0.96},{"above_terrain":true,"airmass":3.49,"alt":16.46,"az":73.9,"t":"2026-12-19T06:40:00Z","terrain":0.76},{"above_terrain":true,"airmass":3.32,"alt":17.36,"az":74.6,"t":"2026-12-19T06:45:00Z","terrain":0.67},{"above_terrain":true,"airmass":3.16,"alt":18.27,"az":75.4,"t":"2026-12-19T06:50:00Z","terrain":0.67},{"above_terrain":true,"airmass":3.02,"alt":19.18,"az":76.2,"t":"2026-12-19T06:55:00Z","terrain":0.72},{"above_terrain":true,"airmass":2.89,"alt":20.09,"az":76.9,"t":"2026-12-19T07:00:00Z","terrain":0.7},{"above_terrain":true,"airmass":2.77,"alt":21.0,"az":77.7,"t":"2026-12-19T07:05:00Z","terrain":0.65},{"above_terrain":true,"airmass":2.66,"alt":21.92,"az":78.4,"t":"2026-12-19T07:10:00Z","terrain":0.6},{"above_terrain":true,"airmass":2.56,"alt":22.83,"az":79.2,"t":"2026-12-19T07:15:00Z","terrain":0.55},{"above_terrain":true,"airmass":2.47,"alt":23.75,"az":79.9,"t":"2026-12-19T07:20:00Z","terrain":0.47},{"above_terrain":true,"airmass":2.38,"alt":24.68,"az":80.7,"t":"2026-12-19T07:25:00Z","terrain":0.61},{"above_terrain":true,"airmass":2.3,"alt":25.6,"az":81.5,"t":"2026-12-19T07:30:00Z","terrain":0.74},{"above_terrain":true,"airmass":2.23,"alt":26.53,"az":82.2,"t":"2026-12-19T07:35:00Z","terrain":0.72},{"above_terrain":true,"airmass":2.16,"alt":27.46,"az":83.0,"t":"2026-12-19T07:40:00Z","terrain":0.47},{"above_terrain":true,"airmass":2.1,"alt":28.39,"az":83.8,"t":"2026-12-19T07:45:00Z","terrain":0.4},{"above_terrain":true,"airmass":2.04,"alt":29.32,"az":84.6,"t":"2026-12-19T07:50:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.98,"alt":30.25,"az":85.4,"t":"2026-12-19T07:55:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.93,"alt":31.18,"az":86.1,"t":"2026-12-19T08:00:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.88,"alt":32.12,"az":86.9,"t":"2026-12-19T08:05:00Z","terrain":0.08},{"above_terrain":true,"airmass":1.83,"alt":33.05,"az":87.8,"t":"2026-12-19T08:10:00Z","terrain":-0.04},{"above_terrain":true,"airmass":1.79,"alt":33.99,"az":88.6,"t":"2026-12-19T08:15:00Z","terrain":-0.14},{"above_terrain":true,"airmass":1.74,"alt":34.92,"az":89.4,"t":"2026-12-19T08:20:00Z","terrain":-0.21},{"above_terrain":true,"airmass":1.7,"alt":35.86,"az":90.2,"t":"2026-12-19T08:25:00Z","terrain":-0.19},{"above_terrain":true,"airmass":1.67,"alt":36.79,"az":91.1,"t":"2026-12-19T08:30:00Z","terrain":-0.08},{"above_terrain":true,"airmass":1.63,"alt":37.73,"az":91.9,"t":"2026-12-19T08:35:00Z","terrain":0.08},{"above_terrain":true,"airmass":1.6,"alt":38.67,"az":92.8,"t":"2026-12-19T08:40:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.57,"alt":39.6,"az":93.7,"t":"2026-12-19T08:45:00Z","terrain":0.38},{"above_terrain":true,"airmass":1.54,"alt":40.53,"az":94.5,"t":"2026-12-19T08:50:00Z","terrain":0.39},{"above_terrain":true,"airmass":1.51,"alt":41.47,"az":95.4,"t":"2026-12-19T08:55:00Z","terrain":0.46},{"above_terrain":true,"airmass":1.48,"alt":42.4,"az":96.4,"t":"2026-12-19T09:00:00Z","terrain":0.62},{"above_terrain":true,"airmass":1.46,"alt":43.33,"az":97.3,"t":"2026-12-19T09:05:00Z","terrain":0.71},{"above_terrain":true,"airmass":1.43,"alt":44.25,"az":98.3,"t":"2026-12-19T09:10:00Z","terrain":0.63},{"above_terrain":true,"airmass":1.41,"alt":45.18,"az":99.2,"t":"2026-12-19T09:15:00Z","terrain":0.43},{"above_terrain":true,"airmass":1.39,"alt":46.1,"az":100.2,"t":"2026-12-19T09:20:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.37,"alt":47.02,"az":101.2,"t":"2026-12-19T09:25:00Z","terrain":0.05},{"above_terrain":true,"airmass":1.35,"alt":47.94,"az":102.3,"t":"2026-12-19T09:30:00Z","terrain":-0.09},{"above_terrain":true,"airmass":1.33,"alt":48.85,"az":103.4,"t":"2026-12-19T09:35:00Z","terrain":-0.14},{"above_terrain":true,"airmass":1.31,"alt":49.76,"az":104.5,"t":"2026-12-19T09:40:00Z","terrain":-0.09},{"above_terrain":true,"airmass":1.29,"alt":50.66,"az":105.6,"t":"2026-12-19T09:45:00Z","terrain":-0.46},{"above_terrain":true,"airmass":1.28,"alt":51.56,"az":106.7,"t":"2026-12-19T09:50:00Z","terrain":-0.62},{"above_terrain":true,"airmass":1.26,"alt":52.45,"az":107.9,"t":"2026-12-19T09:55:00Z","terrain":-0.91},{"above_terrain":true,"airmass":1.25,"alt":53.34,"az":109.2,"t":"2026-12-19T10:00:00Z","terrain":-1.18}],"transit":{"airmass":1.06,"alt":71.1,"az":180.4,"t":"2026-12-18T12:35:00Z"},"usable_hours":1.58,"verdict":"marginal","zenith_passage":false},"warnings":["No cloud data for this night (beyond the 4-day forecast, or not yet in the archive) \u2014 the score is geometry only."]}