{"assessment":{"best_window":{"end":"2026-12-15T19:50Z","end_local":"21:50","hours":3.25,"label":"good","mean_quality":0.74,"start":"2026-12-15T16:35Z","start_local":"18:35"},"cost":{"altitude":8.57,"clouds":0.0,"darkness":1.37,"moon":0.59},"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 possible, with compromises \u2014 weather unknown","hourly":[{"alt":76,"cloud":null,"high":null,"iso":"2026-12-15T15:00Z","label":"unusable","low":null,"mid":null,"moon_alt":39,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"17:00","wind":null},{"alt":65,"cloud":null,"high":null,"iso":"2026-12-15T16:00Z","label":"marginal","low":null,"mid":null,"moon_alt":38,"precip":null,"q":0.41,"rh":null,"sky":"astronomical twilight","temp":null,"time":"18:00","wind":null},{"alt":55,"cloud":null,"high":null,"iso":"2026-12-15T17:00Z","label":"good","low":null,"mid":null,"moon_alt":34,"precip":null,"q":0.79,"rh":null,"sky":"night","temp":null,"time":"19:00","wind":null},{"alt":44,"cloud":null,"high":null,"iso":"2026-12-15T18:00Z","label":"good","low":null,"mid":null,"moon_alt":27,"precip":null,"q":0.75,"rh":null,"sky":"night","temp":null,"time":"20:00","wind":null},{"alt":34,"cloud":null,"high":null,"iso":"2026-12-15T19:00Z","label":"good","low":null,"mid":null,"moon_alt":18,"precip":null,"q":0.7,"rh":null,"sky":"night","temp":null,"time":"21:00","wind":null},{"alt":25,"cloud":null,"high":null,"iso":"2026-12-15T20:00Z","label":"marginal","low":null,"mid":null,"moon_alt":9,"precip":null,"q":0.53,"rh":null,"sky":"night","temp":null,"time":"22:00","wind":null},{"alt":17,"cloud":null,"high":null,"iso":"2026-12-15T21:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-2,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":9,"cloud":null,"high":null,"iso":"2026-12-15T22:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-13,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":3,"cloud":null,"high":null,"iso":"2026-12-15T23:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-23,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":-1,"cloud":null,"high":null,"iso":"2026-12-16T00:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-33,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":-3,"cloud":null,"high":null,"iso":"2026-12-16T01:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-42,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":-4,"cloud":null,"high":null,"iso":"2026-12-16T02:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-50,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"04:00","wind":null},{"alt":-2,"cloud":null,"high":null,"iso":"2026-12-16T03:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-54,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"05:00","wind":null},{"alt":1,"cloud":null,"high":null,"iso":"2026-12-16T04:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-54,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"06:00","wind":null},{"alt":7,"cloud":null,"high":null,"iso":"2026-12-16T05:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-49,"precip":null,"q":0.0,"rh":null,"sky":"nautical twilight","temp":null,"time":"07:00","wind":null}],"peak_quality":0.81,"peak_sky":0.81,"quality_hours":3.09,"reasons":["the target being low or below 20\u00b0 cost 8.6 quality-hours","daylight and twilight cost 1.4 quality-hours","moonlight cost 0.6 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":63,"score_weather":null,"sky_hours":3.09,"verdict":"unknown","verdict_astronomy":"marginal","weather_known":false,"windows":[{"end":"2026-12-15T15:25Z","end_local":"17:25","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-15T14:50Z","start_local":"16:50"},{"end":"2026-12-15T16:00Z","end_local":"18:00","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2026-12-15T15:25Z","start_local":"17:25"},{"end":"2026-12-15T16:35Z","end_local":"18:35","hours":0.58,"label":"marginal","mean_quality":0.41,"start":"2026-12-15T16:00Z","start_local":"18:00"},{"end":"2026-12-15T19:50Z","end_local":"21:50","hours":3.25,"label":"good","mean_quality":0.74,"start":"2026-12-15T16:35Z","start_local":"18:35"},{"end":"2026-12-15T20:40Z","end_local":"22:40","hours":0.83,"label":"marginal","mean_quality":0.47,"start":"2026-12-15T19:50Z","start_local":"21:50"},{"end":"2026-12-16T05:45Z","end_local":"07:45","hours":9.08,"label":"unusable","mean_quality":0.0,"start":"2026-12-15T20:40Z","start_local":"22:40"}]},"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":"2026-12-15T16:31:39Z","dark_hours":11.49,"dark_to":"2026-12-16T04:01:10Z","moon":{"illumination":0.371,"phase":"waxing crescent","waxing":true},"moon_free_dark_hours":7.2,"moonrise":null,"moonset":"2026-12-15T20:48:33Z","sunrise":"2026-12-16T05:41:35Z","sunset":"2026-12-15T14:51:18Z","twilight":{"astronomical":{"end":"2026-12-15T16:31:39Z","start":"2026-12-16T04:01:10Z"},"civil":{"end":"2026-12-15T15:22:49Z","start":"2026-12-16T05:10:02Z"},"nautical":{"end":"2026-12-15T15:57:50Z","start":"2026-12-16T04:35:00Z"}},"window_end":"2026-12-16T10:00:00Z","window_start":"2026-12-15T10:00:00Z"},"night_date":"2026-12-15","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":1.17,"alt":58.9,"t":"2026-12-15T16:35:00Z"},"dec":44.25788576,"dec_of_date":44.3637,"dec_str":"+44\u00b0 15' 28.4\"","good_hours":2.92,"limit_rise":"2026-12-16T06:47:52Z","limit_set":"2026-12-15T20:36:10Z","max_az_rate_deg_per_min":3.77,"moon_separation":56.0,"never_rises":false,"ra":314.72388973,"ra_of_date":314.9654,"ra_str":"20h 58m 53.7s","resolved":{"dec":44.25788576,"name":"EM* LkHA 190","ra":314.72388973,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=V1057%20Cyg","source":"sesame","spectral_type":"F7/G3I/IIe","type":"Or*","type_text":"Orion-type variable \u2014 a young, erupting star","vmag":12.33},"summary":"Only 2.9 h above 30\u00b0, 4.1 h above 20\u00b0 \u2014 usable, at high airmass.","terrain":{"available":true,"behind_at":"2026-12-15T23:52:13Z","blocked_dark_hours":0,"clears_at":"2026-12-16T03:55:17Z","rise_az":66.6},"track":[{"above_terrain":true,"airmass":1.31,"alt":49.68,"az":66.6,"t":"2026-12-15T10:00:00Z","terrain":0.89},{"above_terrain":true,"airmass":1.29,"alt":50.54,"az":67.0,"t":"2026-12-15T10:05:00Z","terrain":0.93},{"above_terrain":true,"airmass":1.28,"alt":51.4,"az":67.4,"t":"2026-12-15T10:10:00Z","terrain":0.95},{"above_terrain":true,"airmass":1.26,"alt":52.27,"az":67.7,"t":"2026-12-15T10:15:00Z","terrain":0.97},{"above_terrain":true,"airmass":1.25,"alt":53.13,"az":68.1,"t":"2026-12-15T10:20:00Z","terrain":1.0},{"above_terrain":true,"airmass":1.24,"alt":54.0,"az":68.5,"t":"2026-12-15T10:25:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.22,"alt":54.88,"az":68.8,"t":"2026-12-15T10:30:00Z","terrain":1.04},{"above_terrain":true,"airmass":1.21,"alt":55.75,"az":69.2,"t":"2026-12-15T10:35:00Z","terrain":1.08},{"above_terrain":true,"airmass":1.2,"alt":56.63,"az":69.5,"t":"2026-12-15T10:40:00Z","terrain":1.14},{"above_terrain":true,"airmass":1.18,"alt":57.5,"az":69.8,"t":"2026-12-15T10:45:00Z","terrain":1.19},{"above_terrain":true,"airmass":1.17,"alt":58.38,"az":70.2,"t":"2026-12-15T10:50:00Z","terrain":1.23},{"above_terrain":true,"airmass":1.16,"alt":59.26,"az":70.5,"t":"2026-12-15T10:55:00Z","terrain":1.24},{"above_terrain":true,"airmass":1.15,"alt":60.15,"az":70.8,"t":"2026-12-15T11:00:00Z","terrain":1.25},{"above_terrain":true,"airmass":1.14,"alt":61.03,"az":71.1,"t":"2026-12-15T11:05:00Z","terrain":1.26},{"above_terrain":true,"airmass":1.13,"alt":61.92,"az":71.4,"t":"2026-12-15T11:10:00Z","terrain":1.24},{"above_terrain":true,"airmass":1.12,"alt":62.81,"az":71.6,"t":"2026-12-15T11:15:00Z","terrain":1.22},{"above_terrain":true,"airmass":1.11,"alt":63.69,"az":71.9,"t":"2026-12-15T11:20:00Z","terrain":1.21},{"above_terrain":true,"airmass":1.11,"alt":64.58,"az":72.1,"t":"2026-12-15T11:25:00Z","terrain":1.18},{"above_terrain":true,"airmass":1.1,"alt":65.48,"az":72.3,"t":"2026-12-15T11:30:00Z","terrain":1.13},{"above_terrain":true,"airmass":1.09,"alt":66.37,"az":72.5,"t":"2026-12-15T11:35:00Z","terrain":1.09},{"above_terrain":true,"airmass":1.08,"alt":67.26,"az":72.7,"t":"2026-12-15T11:40:00Z","terrain":1.05},{"above_terrain":true,"airmass":1.08,"alt":68.15,"az":72.9,"t":"2026-12-15T11:45:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.07,"alt":69.05,"az":73.0,"t":"2026-12-15T11:50:00Z","terrain":0.99},{"above_terrain":true,"airmass":1.06,"alt":69.95,"az":73.1,"t":"2026-12-15T11:55:00Z","terrain":0.96},{"above_terrain":true,"airmass":1.06,"alt":70.84,"az":73.2,"t":"2026-12-15T12:00:00Z","terrain":0.94},{"above_terrain":true,"airmass":1.05,"alt":71.74,"az":73.2,"t":"2026-12-15T12:05:00Z","terrain":0.93},{"above_terrain":true,"airmass":1.05,"alt":72.63,"az":73.2,"t":"2026-12-15T12:10:00Z","terrain":0.94},{"above_terrain":true,"airmass":1.04,"alt":73.53,"az":73.2,"t":"2026-12-15T12:15:00Z","terrain":0.95},{"above_terrain":true,"airmass":1.04,"alt":74.42,"az":73.0,"t":"2026-12-15T12:20:00Z","terrain":0.98},{"above_terrain":true,"airmass":1.03,"alt":75.32,"az":72.9,"t":"2026-12-15T12:25:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.03,"alt":76.21,"az":72.6,"t":"2026-12-15T12:30:00Z","terrain":1.08},{"above_terrain":true,"airmass":1.03,"alt":77.11,"az":72.2,"t":"2026-12-15T12:35:00Z","terrain":1.15},{"above_terrain":true,"airmass":1.02,"alt":78.0,"az":71.8,"t":"2026-12-15T12:40:00Z","terrain":1.21},{"above_terrain":true,"airmass":1.02,"alt":78.88,"az":71.1,"t":"2026-12-15T12:45:00Z","terrain":1.25},{"above_terrain":true,"airmass":1.02,"alt":79.77,"az":70.3,"t":"2026-12-15T12:50:00Z","terrain":1.23},{"above_terrain":true,"airmass":1.01,"alt":80.64,"az":69.3,"t":"2026-12-15T12:55:00Z","terrain":1.1},{"above_terrain":true,"airmass":1.01,"alt":81.52,"az":68.0,"t":"2026-12-15T13:00:00Z","terrain":0.99},{"above_terrain":true,"airmass":1.01,"alt":82.38,"az":66.2,"t":"2026-12-15T13:05:00Z","terrain":0.85},{"above_terrain":true,"airmass":1.01,"alt":83.23,"az":63.9,"t":"2026-12-15T13:10:00Z","terrain":0.78},{"above_terrain":true,"airmass":1.01,"alt":84.06,"az":60.9,"t":"2026-12-15T13:15:00Z","terrain":1.1},{"above_terrain":true,"airmass":1.0,"alt":84.86,"az":56.7,"t":"2026-12-15T13:20:00Z","terrain":1.06},{"above_terrain":true,"airmass":1.0,"alt":85.62,"az":50.9,"t":"2026-12-15T13:25:00Z","terrain":0.51},{"above_terrain":true,"airmass":1.0,"alt":86.3,"az":42.6,"t":"2026-12-15T13:30:00Z","terrain":0.2},{"above_terrain":true,"airmass":1.0,"alt":86.86,"az":30.9,"t":"2026-12-15T13:35:00Z","terrain":1.29},{"above_terrain":true,"airmass":1.0,"alt":87.23,"az":15.0,"t":"2026-12-15T13:40:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.0,"alt":87.32,"az":356.1,"t":"2026-12-15T13:45:00Z","terrain":0.75},{"above_terrain":true,"airmass":1.0,"alt":87.11,"az":338.1,"t":"2026-12-15T13:50:00Z","terrain":-0.49},{"above_terrain":true,"airmass":1.0,"alt":86.65,"az":323.9,"t":"2026-12-15T13:55:00Z","terrain":-0.17},{"above_terrain":true,"airmass":1.0,"alt":86.03,"az":313.7,"t":"2026-12-15T14:00:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.0,"alt":85.32,"az":306.5,"t":"2026-12-15T14:05:00Z","terrain":0.01},{"above_terrain":true,"airmass":1.0,"alt":84.54,"az":301.5,"t":"2026-12-15T14:10:00Z","terrain":0.21},{"above_terrain":true,"airmass":1.01,"alt":83.72,"az":297.8,"t":"2026-12-15T14:15:00Z","terrain":0.15},{"above_terrain":true,"airmass":1.01,"alt":82.89,"az":295.1,"t":"2026-12-15T14:20:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.01,"alt":82.03,"az":293.0,"t":"2026-12-15T14:25:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.01,"alt":81.16,"az":291.5,"t":"2026-12-15T14:30:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.01,"alt":80.29,"az":290.3,"t":"2026-12-15T14:35:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.02,"alt":79.41,"az":289.3,"t":"2026-12-15T14:40:00Z","terrain":0.21},{"above_terrain":true,"airmass":1.02,"alt":78.52,"az":288.6,"t":"2026-12-15T14:45:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.02,"alt":77.63,"az":288.0,"t":"2026-12-15T14:50:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.03,"alt":76.74,"az":287.6,"t":"2026-12-15T14:55:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.03,"alt":75.85,"az":287.3,"t":"2026-12-15T15:00:00Z","terrain":0.31},{"above_terrain":true,"airmass":1.04,"alt":74.96,"az":287.1,"t":"2026-12-15T15:05:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.04,"alt":74.06,"az":286.9,"t":"2026-12-15T15:10:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.04,"alt":73.17,"az":286.8,"t":"2026-12-15T15:15:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.05,"alt":72.27,"az":286.8,"t":"2026-12-15T15:20:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.05,"alt":71.37,"az":286.8,"t":"2026-12-15T15:25:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.06,"alt":70.48,"az":286.8,"t":"2026-12-15T15:30:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.07,"alt":69.58,"az":286.9,"t":"2026-12-15T15:35:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.07,"alt":68.69,"az":287.0,"t":"2026-12-15T15:40:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.08,"alt":67.79,"az":287.2,"t":"2026-12-15T15:45:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.09,"alt":66.9,"az":287.4,"t":"2026-12-15T15:50:00Z","terrain":0.3},{"above_terrain":true,"airmass":1.09,"alt":66.01,"az":287.5,"t":"2026-12-15T15:55:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.1,"alt":65.11,"az":287.8,"t":"2026-12-15T16:00:00Z","terrain":0.22},{"above_terrain":true,"airmass":1.11,"alt":64.22,"az":288.0,"t":"2026-12-15T16:05:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.12,"alt":63.33,"az":288.2,"t":"2026-12-15T16:10:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.13,"alt":62.44,"az":288.5,"t":"2026-12-15T16:15:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.14,"alt":61.56,"az":288.8,"t":"2026-12-15T16:20:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.15,"alt":60.67,"az":289.0,"t":"2026-12-15T16:25:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.16,"alt":59.79,"az":289.3,"t":"2026-12-15T16:30:00Z","terrain":0.22},{"above_terrain":true,"airmass":1.17,"alt":58.91,"az":289.6,"t":"2026-12-15T16:35:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.18,"alt":58.03,"az":290.0,"t":"2026-12-15T16:40:00Z","terrain":0.29},{"above_terrain":true,"airmass":1.19,"alt":57.15,"az":290.3,"t":"2026-12-15T16:45:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.2,"alt":56.27,"az":290.6,"t":"2026-12-15T16:50:00Z","terrain":0.41},{"above_terrain":true,"airmass":1.21,"alt":55.39,"az":291.0,"t":"2026-12-15T16:55:00Z","terrain":0.48},{"above_terrain":true,"airmass":1.23,"alt":54.52,"az":291.3,"t":"2026-12-15T17:00:00Z","terrain":0.51},{"above_terrain":true,"airmass":1.24,"alt":53.65,"az":291.7,"t":"2026-12-15T17:05:00Z","terrain":0.53},{"above_terrain":true,"airmass":1.25,"alt":52.78,"az":292.0,"t":"2026-12-15T17:10:00Z","terrain":0.54},{"above_terrain":true,"airmass":1.27,"alt":51.92,"az":292.4,"t":"2026-12-15T17:15:00Z","terrain":0.44},{"above_terrain":true,"airmass":1.28,"alt":51.05,"az":292.8,"t":"2026-12-15T17:20:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.3,"alt":50.19,"az":293.2,"t":"2026-12-15T17:25:00Z","terrain":0.27},{"above_terrain":true,"airmass":1.32,"alt":49.33,"az":293.6,"t":"2026-12-15T17:30:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.33,"alt":48.47,"az":294.0,"t":"2026-12-15T17:35:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.35,"alt":47.62,"az":294.4,"t":"2026-12-15T17:40:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.37,"alt":46.77,"az":294.8,"t":"2026-12-15T17:45:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.39,"alt":45.92,"az":295.2,"t":"2026-12-15T17:50:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.41,"alt":45.08,"az":295.7,"t":"2026-12-15T17:55:00Z","terrain":0.3},{"above_terrain":true,"airmass":1.43,"alt":44.23,"az":296.1,"t":"2026-12-15T18:00:00Z","terrain":0.32},{"above_terrain":true,"airmass":1.45,"alt":43.4,"az":296.5,"t":"2026-12-15T18:05:00Z","terrain":0.29},{"above_terrain":true,"airmass":1.48,"alt":42.56,"az":297.0,"t":"2026-12-15T18:10:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.5,"alt":41.73,"az":297.4,"t":"2026-12-15T18:15:00Z","terrain":0.2},{"above_terrain":true,"airmass":1.53,"alt":40.9,"az":297.9,"t":"2026-12-15T18:20:00Z","terrain":0.14},{"above_terrain":true,"airmass":1.55,"alt":40.07,"az":298.3,"t":"2026-12-15T18:25:00Z","terrain":0.14},{"above_terrain":true,"airmass":1.58,"alt":39.25,"az":298.8,"t":"2026-12-15T18:30:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.61,"alt":38.43,"az":299.2,"t":"2026-12-15T18:35:00Z","terrain":0.22},{"above_terrain":true,"airmass":1.64,"alt":37.62,"az":299.7,"t":"2026-12-15T18:40:00Z","terrain":0.31},{"above_terrain":true,"airmass":1.67,"alt":36.81,"az":300.2,"t":"2026-12-15T18:45:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.7,"alt":36.0,"az":300.7,"t":"2026-12-15T18:50:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.73,"alt":35.2,"az":301.2,"t":"2026-12-15T18:55:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.77,"alt":34.4,"az":301.7,"t":"2026-12-15T19:00:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.8,"alt":33.6,"az":302.2,"t":"2026-12-15T19:05:00Z","terrain":0.03},{"above_terrain":true,"airmass":1.84,"alt":32.81,"az":302.7,"t":"2026-12-15T19:10:00Z","terrain":-0.13},{"above_terrain":true,"airmass":1.88,"alt":32.03,"az":303.2,"t":"2026-12-15T19:15:00Z","terrain":-0.21},{"above_terrain":true,"airmass":1.92,"alt":31.25,"az":303.7,"t":"2026-12-15T19:20:00Z","terrain":-0.14},{"above_terrain":true,"airmass":1.97,"alt":30.47,"az":304.2,"t":"2026-12-15T19:25:00Z","terrain":-0.14},{"above_terrain":true,"airmass":2.01,"alt":29.7,"az":304.7,"t":"2026-12-15T19:30:00Z","terrain":-0.24},{"above_terrain":true,"airmass":2.06,"alt":28.93,"az":305.3,"t":"2026-12-15T19:35:00Z","terrain":-0.26},{"above_terrain":true,"airmass":2.11,"alt":28.17,"az":305.8,"t":"2026-12-15T19:40:00Z","terrain":-0.19},{"above_terrain":true,"airmass":2.16,"alt":27.41,"az":306.4,"t":"2026-12-15T19:45:00Z","terrain":-0.04},{"above_terrain":true,"airmass":2.22,"alt":26.66,"az":306.9,"t":"2026-12-15T19:50:00Z","terrain":0.15},{"above_terrain":true,"airmass":2.28,"alt":25.92,"az":307.5,"t":"2026-12-15T19:55:00Z","terrain":0.24},{"above_terrain":true,"airmass":2.34,"alt":25.18,"az":308.0,"t":"2026-12-15T20:00:00Z","terrain":0.32},{"above_terrain":true,"airmass":2.41,"alt":24.44,"az":308.6,"t":"2026-12-15T20:05:00Z","terrain":0.23},{"above_terrain":true,"airmass":2.47,"alt":23.71,"az":309.2,"t":"2026-12-15T20:10:00Z","terrain":0.18},{"above_terrain":true,"airmass":2.55,"alt":22.99,"az":309.7,"t":"2026-12-15T20:15:00Z","terrain":0.21},{"above_terrain":true,"airmass":2.62,"alt":22.27,"az":310.3,"t":"2026-12-15T20:20:00Z","terrain":0.26},{"above_terrain":true,"airmass":2.7,"alt":21.56,"az":310.9,"t":"2026-12-15T20:25:00Z","terrain":0.35},{"above_terrain":true,"airmass":2.79,"alt":20.86,"az":311.5,"t":"2026-12-15T20:30:00Z","terrain":0.25},{"above_terrain":true,"airmass":2.88,"alt":20.16,"az":312.1,"t":"2026-12-15T20:35:00Z","terrain":0.15},{"above_terrain":true,"airmass":2.98,"alt":19.47,"az":312.7,"t":"2026-12-15T20:40:00Z","terrain":0.23},{"above_terrain":true,"airmass":3.08,"alt":18.79,"az":313.3,"t":"2026-12-15T20:45:00Z","terrain":0.33},{"above_terrain":true,"airmass":3.19,"alt":18.11,"az":313.9,"t":"2026-12-15T20:50:00Z","terrain":0.46},{"above_terrain":true,"airmass":3.31,"alt":17.44,"az":314.6,"t":"2026-12-15T20:55:00Z","terrain":0.52},{"above_terrain":true,"airmass":3.43,"alt":16.77,"az":315.2,"t":"2026-12-15T21:00:00Z","terrain":0.54},{"above_terrain":true,"airmass":3.56,"alt":16.12,"az":315.8,"t":"2026-12-15T21:05:00Z","terrain":0.49},{"above_terrain":true,"airmass":3.7,"alt":15.47,"az":316.5,"t":"2026-12-15T21:10:00Z","terrain":0.39},{"above_terrain":true,"airmass":3.85,"alt":14.83,"az":317.1,"t":"2026-12-15T21:15:00Z","terrain":0.3},{"above_terrain":true,"airmass":4.02,"alt":14.2,"az":317.8,"t":"2026-12-15T21:20:00Z","terrain":0.32},{"above_terrain":true,"airmass":4.19,"alt":13.57,"az":318.4,"t":"2026-12-15T21:25:00Z","terrain":0.12},{"above_terrain":true,"airmass":4.38,"alt":12.96,"az":319.1,"t":"2026-12-15T21:30:00Z","terrain":-0.15},{"above_terrain":true,"airmass":4.58,"alt":12.35,"az":319.8,"t":"2026-12-15T21:35:00Z","terrain":-0.19},{"above_terrain":true,"airmass":4.81,"alt":11.75,"az":320.5,"t":"2026-12-15T21:40:00Z","terrain":-0.2},{"above_terrain":true,"airmass":5.04,"alt":11.15,"az":321.1,"t":"2026-12-15T21:45:00Z","terrain":-0.14},{"above_terrain":true,"airmass":5.3,"alt":10.57,"az":321.8,"t":"2026-12-15T21:50:00Z","terrain":0.14},{"above_terrain":true,"airmass":5.59,"alt":10.0,"az":322.5,"t":"2026-12-15T21:55:00Z","terrain":0.14},{"above_terrain":true,"airmass":5.9,"alt":9.43,"az":323.2,"t":"2026-12-15T22:00:00Z","terrain":0.01},{"above_terrain":true,"airmass":6.24,"alt":8.88,"az":324.0,"t":"2026-12-15T22:05:00Z","terrain":-0.2},{"above_terrain":true,"airmass":6.61,"alt":8.33,"az":324.7,"t":"2026-12-15T22:10:00Z","terrain":-0.2},{"above_terrain":true,"airmass":7.02,"alt":7.8,"az":325.4,"t":"2026-12-15T22:15:00Z","terrain":-0.21},{"above_terrain":true,"airmass":7.47,"alt":7.27,"az":326.1,"t":"2026-12-15T22:20:00Z","terrain":-0.26},{"above_terrain":true,"airmass":7.98,"alt":6.75,"az":326.9,"t":"2026-12-15T22:25:00Z","terrain":-0.37},{"above_terrain":true,"airmass":8.54,"alt":6.25,"az":327.6,"t":"2026-12-15T22:30:00Z","terrain":-0.29},{"above_terrain":true,"airmass":9.17,"alt":5.75,"az":328.4,"t":"2026-12-15T22:35:00Z","terrain":-0.19},{"above_terrain":true,"airmass":9.88,"alt":5.26,"az":329.1,"t":"2026-12-15T22:40:00Z","terrain":-0.16},{"above_terrain":true,"airmass":10.67,"alt":4.79,"az":329.9,"t":"2026-12-15T22:45:00Z","terrain":-0.32},{"above_terrain":true,"airmass":11.58,"alt":4.33,"az":330.7,"t":"2026-12-15T22:50:00Z","terrain":-0.38},{"above_terrain":true,"airmass":12.61,"alt":3.87,"az":331.4,"t":"2026-12-15T22:55:00Z","terrain":-0.28},{"above_terrain":true,"airmass":13.79,"alt":3.43,"az":332.2,"t":"2026-12-15T23:00:00Z","terrain":-0.14},{"above_terrain":true,"airmass":15.15,"alt":3.0,"az":333.0,"t":"2026-12-15T23:05:00Z","terrain":-0.12},{"above_terrain":true,"airmass":16.72,"alt":2.58,"az":333.8,"t":"2026-12-15T23:10:00Z","terrain":-0.21},{"above_terrain":true,"airmass":18.55,"alt":2.17,"az":334.6,"t":"2026-12-15T23:15:00Z","terrain":-0.44},{"above_terrain":true,"airmass":20.68,"alt":1.78,"az":335.4,"t":"2026-12-15T23:20:00Z","terrain":-0.68},{"above_terrain":true,"airmass":23.18,"alt":1.39,"az":336.2,"t":"2026-12-15T23:25:00Z","terrain":-0.81},{"above_terrain":true,"airmass":26.12,"alt":1.02,"az":337.0,"t":"2026-12-15T23:30:00Z","terrain":-0.73},{"above_terrain":true,"airmass":29.56,"alt":0.66,"az":337.8,"t":"2026-12-15T23:35:00Z","terrain":-0.51},{"above_terrain":true,"airmass":33.57,"alt":0.32,"az":338.7,"t":"2026-12-15T23:40:00Z","terrain":-0.66},{"above_terrain":true,"airmass":null,"alt":-0.02,"az":339.5,"t":"2026-12-15T23:45:00Z","terrain":-0.64},{"above_terrain":true,"airmass":null,"alt":-0.34,"az":340.3,"t":"2026-12-15T23:50:00Z","terrain":-0.5},{"above_terrain":false,"airmass":null,"alt":-0.65,"az":341.2,"t":"2026-12-15T23:55:00Z","terrain":-0.45},{"above_terrain":false,"airmass":null,"alt":-0.94,"az":342.0,"t":"2026-12-16T00:00:00Z","terrain":-0.49},{"above_terrain":false,"airmass":null,"alt":-1.23,"az":342.9,"t":"2026-12-16T00:05:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-1.49,"az":343.7,"t":"2026-12-16T00:10:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-1.75,"az":344.6,"t":"2026-12-16T00:15:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-1.99,"az":345.4,"t":"2026-12-16T00:20:00Z","terrain":-0.47},{"above_terrain":false,"airmass":null,"alt":-2.22,"az":346.3,"t":"2026-12-16T00:25:00Z","terrain":-0.51},{"above_terrain":false,"airmass":null,"alt":-2.43,"az":347.2,"t":"2026-12-16T00:30:00Z","terrain":-0.37},{"above_terrain":false,"airmass":null,"alt":-2.64,"az":348.1,"t":"2026-12-16T00:35:00Z","terrain":-0.13},{"above_terrain":false,"airmass":null,"alt":-2.82,"az":348.9,"t":"2026-12-16T00:40:00Z","terrain":-0.01},{"above_terrain":false,"airmass":null,"alt":-2.99,"az":349.8,"t":"2026-12-16T00:45:00Z","terrain":0.11},{"above_terrain":false,"airmass":null,"alt":-3.15,"az":350.7,"t":"2026-12-16T00:50:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-3.3,"az":351.6,"t":"2026-12-16T00:55:00Z","terrain":0.22},{"above_terrain":false,"airmass":null,"alt":-3.43,"az":352.5,"t":"2026-12-16T01:00:00Z","terrain":0.38},{"above_terrain":false,"airmass":null,"alt":-3.54,"az":353.4,"t":"2026-12-16T01:05:00Z","terrain":0.54},{"above_terrain":false,"airmass":null,"alt":-3.64,"az":354.3,"t":"2026-12-16T01:10:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-3.73,"az":355.2,"t":"2026-12-16T01:15:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-3.8,"az":356.0,"t":"2026-12-16T01:20:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-3.86,"az":356.9,"t":"2026-12-16T01:25:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-3.9,"az":357.8,"t":"2026-12-16T01:30:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-3.93,"az":358.7,"t":"2026-12-16T01:35:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-3.94,"az":359.6,"t":"2026-12-16T01:40:00Z","terrain":0.54},{"above_terrain":false,"airmass":null,"alt":-3.94,"az":0.5,"t":"2026-12-16T01:45:00Z","terrain":0.43},{"above_terrain":false,"airmass":null,"alt":-3.92,"az":1.4,"t":"2026-12-16T01:50:00Z","terrain":0.26},{"above_terrain":false,"airmass":null,"alt":-3.89,"az":2.3,"t":"2026-12-16T01:55:00Z","terrain":0.04},{"above_terrain":false,"airmass":null,"alt":-3.85,"az":3.2,"t":"2026-12-16T02:00:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-3.79,"az":4.1,"t":"2026-12-16T02:05:00Z","terrain":-0.3},{"above_terrain":false,"airmass":null,"alt":-3.71,"az":5.0,"t":"2026-12-16T02:10:00Z","terrain":-0.43},{"above_terrain":false,"airmass":null,"alt":-3.62,"az":5.9,"t":"2026-12-16T02:15:00Z","terrain":-0.58},{"above_terrain":false,"airmass":null,"alt":-3.52,"az":6.8,"t":"2026-12-16T02:20:00Z","terrain":-0.45},{"above_terrain":false,"airmass":null,"alt":-3.4,"az":7.7,"t":"2026-12-16T02:25:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-3.27,"az":8.6,"t":"2026-12-16T02:30:00Z","terrain":-0.56},{"above_terrain":false,"airmass":null,"alt":-3.12,"az":9.5,"t":"2026-12-16T02:35:00Z","terrain":-0.63},{"above_terrain":false,"airmass":null,"alt":-2.96,"az":10.4,"t":"2026-12-16T02:40:00Z","terrain":-0.53},{"above_terrain":false,"airmass":null,"alt":-2.79,"az":11.2,"t":"2026-12-16T02:45:00Z","terrain":-0.35},{"above_terrain":false,"airmass":null,"alt":-2.6,"az":12.1,"t":"2026-12-16T02:50:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-2.39,"az":13.0,"t":"2026-12-16T02:55:00Z","terrain":-0.07},{"above_terrain":false,"airmass":null,"alt":-2.18,"az":13.9,"t":"2026-12-16T03:00:00Z","terrain":0.07},{"above_terrain":false,"airmass":null,"alt":-1.95,"az":14.7,"t":"2026-12-16T03:05:00Z","terrain":0.32},{"above_terrain":false,"airmass":null,"alt":-1.7,"az":15.6,"t":"2026-12-16T03:10:00Z","terrain":0.46},{"above_terrain":false,"airmass":null,"alt":-1.44,"az":16.4,"t":"2026-12-16T03:15:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-1.17,"az":17.3,"t":"2026-12-16T03:20:00Z","terrain":0.49},{"above_terrain":false,"airmass":null,"alt":-0.89,"az":18.1,"t":"2026-12-16T03:25:00Z","terrain":0.54},{"above_terrain":false,"airmass":null,"alt":-0.59,"az":19.0,"t":"2026-12-16T03:30:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-0.28,"az":19.8,"t":"2026-12-16T03:35:00Z","terrain":0.66},{"above_terrain":false,"airmass":37.25,"alt":0.05,"az":20.7,"t":"2026-12-16T03:40:00Z","terrain":0.68},{"above_terrain":false,"airmass":32.75,"alt":0.38,"az":21.5,"t":"2026-12-16T03:45:00Z","terrain":0.84},{"above_terrain":false,"airmass":28.85,"alt":0.73,"az":22.3,"t":"2026-12-16T03:50:00Z","terrain":1.04},{"above_terrain":false,"airmass":25.52,"alt":1.09,"az":23.1,"t":"2026-12-16T03:55:00Z","terrain":1.13},{"above_terrain":true,"airmass":22.67,"alt":1.47,"az":24.0,"t":"2026-12-16T04:00:00Z","terrain":0.93},{"above_terrain":true,"airmass":20.25,"alt":1.85,"az":24.8,"t":"2026-12-16T04:05:00Z","terrain":1.15},{"above_terrain":true,"airmass":18.17,"alt":2.25,"az":25.6,"t":"2026-12-16T04:10:00Z","terrain":1.29},{"above_terrain":true,"airmass":16.4,"alt":2.66,"az":26.4,"t":"2026-12-16T04:15:00Z","terrain":1.32},{"above_terrain":true,"airmass":14.87,"alt":3.08,"az":27.2,"t":"2026-12-16T04:20:00Z","terrain":1.27},{"above_terrain":true,"airmass":13.55,"alt":3.51,"az":27.9,"t":"2026-12-16T04:25:00Z","terrain":1.2},{"above_terrain":true,"airmass":12.4,"alt":3.96,"az":28.7,"t":"2026-12-16T04:30:00Z","terrain":1.05},{"above_terrain":true,"airmass":11.39,"alt":4.41,"az":29.5,"t":"2026-12-16T04:35:00Z","terrain":1.07},{"above_terrain":true,"airmass":10.51,"alt":4.88,"az":30.3,"t":"2026-12-16T04:40:00Z","terrain":1.19},{"above_terrain":true,"airmass":9.73,"alt":5.36,"az":31.0,"t":"2026-12-16T04:45:00Z","terrain":1.31},{"above_terrain":true,"airmass":9.04,"alt":5.85,"az":31.8,"t":"2026-12-16T04:50:00Z","terrain":1.33},{"above_terrain":true,"airmass":8.43,"alt":6.34,"az":32.5,"t":"2026-12-16T04:55:00Z","terrain":1.15},{"above_terrain":true,"airmass":7.88,"alt":6.85,"az":33.3,"t":"2026-12-16T05:00:00Z","terrain":0.84},{"above_terrain":true,"airmass":7.38,"alt":7.37,"az":34.0,"t":"2026-12-16T05:05:00Z","terrain":0.43},{"above_terrain":true,"airmass":6.94,"alt":7.9,"az":34.7,"t":"2026-12-16T05:10:00Z","terrain":0.15},{"above_terrain":true,"airmass":6.53,"alt":8.44,"az":35.5,"t":"2026-12-16T05:15:00Z","terrain":0.04},{"above_terrain":true,"airmass":6.17,"alt":8.98,"az":36.2,"t":"2026-12-16T05:20:00Z","terrain":0.01},{"above_terrain":true,"airmass":5.83,"alt":9.54,"az":36.9,"t":"2026-12-16T05:25:00Z","terrain":-0.08},{"above_terrain":true,"airmass":5.53,"alt":10.11,"az":37.6,"t":"2026-12-16T05:30:00Z","terrain":-0.16},{"above_terrain":true,"airmass":5.25,"alt":10.68,"az":38.3,"t":"2026-12-16T05:35:00Z","terrain":-0.2},{"above_terrain":true,"airmass":5.0,"alt":11.27,"az":39.0,"t":"2026-12-16T05:40:00Z","terrain":-0.16},{"above_terrain":true,"airmass":4.76,"alt":11.86,"az":39.7,"t":"2026-12-16T05:45:00Z","terrain":-0.09},{"above_terrain":true,"airmass":4.54,"alt":12.46,"az":40.3,"t":"2026-12-16T05:50:00Z","terrain":-0.03},{"above_terrain":true,"airmass":4.34,"alt":13.07,"az":41.0,"t":"2026-12-16T05:55:00Z","terrain":0.02},{"above_terrain":true,"airmass":4.16,"alt":13.69,"az":41.7,"t":"2026-12-16T06:00:00Z","terrain":0.09},{"above_terrain":true,"airmass":3.98,"alt":14.32,"az":42.3,"t":"2026-12-16T06:05:00Z","terrain":0.17},{"above_terrain":true,"airmass":3.82,"alt":14.95,"az":43.0,"t":"2026-12-16T06:10:00Z","terrain":0.25},{"above_terrain":true,"airmass":3.67,"alt":15.59,"az":43.7,"t":"2026-12-16T06:15:00Z","terrain":0.35},{"above_terrain":true,"airmass":3.54,"alt":16.24,"az":44.3,"t":"2026-12-16T06:20:00Z","terrain":0.46},{"above_terrain":true,"airmass":3.4,"alt":16.9,"az":44.9,"t":"2026-12-16T06:25:00Z","terrain":0.57},{"above_terrain":true,"airmass":3.28,"alt":17.57,"az":45.6,"t":"2026-12-16T06:30:00Z","terrain":0.63},{"above_terrain":true,"airmass":3.17,"alt":18.24,"az":46.2,"t":"2026-12-16T06:35:00Z","terrain":0.66},{"above_terrain":true,"airmass":3.06,"alt":18.92,"az":46.8,"t":"2026-12-16T06:40:00Z","terrain":0.62},{"above_terrain":true,"airmass":2.96,"alt":19.6,"az":47.4,"t":"2026-12-16T06:45:00Z","terrain":0.58},{"above_terrain":true,"airmass":2.86,"alt":20.3,"az":48.0,"t":"2026-12-16T06:50:00Z","terrain":0.53},{"above_terrain":true,"airmass":2.77,"alt":20.99,"az":48.6,"t":"2026-12-16T06:55:00Z","terrain":0.46},{"above_terrain":true,"airmass":2.69,"alt":21.7,"az":49.2,"t":"2026-12-16T07:00:00Z","terrain":0.41},{"above_terrain":true,"airmass":2.61,"alt":22.41,"az":49.8,"t":"2026-12-16T07:05:00Z","terrain":0.4},{"above_terrain":true,"airmass":2.53,"alt":23.13,"az":50.4,"t":"2026-12-16T07:10:00Z","terrain":0.45},{"above_terrain":true,"airmass":2.46,"alt":23.85,"az":51.0,"t":"2026-12-16T07:15:00Z","terrain":0.52},{"above_terrain":true,"airmass":2.39,"alt":24.58,"az":51.5,"t":"2026-12-16T07:20:00Z","terrain":0.58},{"above_terrain":true,"airmass":2.33,"alt":25.32,"az":52.1,"t":"2026-12-16T07:25:00Z","terrain":0.65},{"above_terrain":true,"airmass":2.27,"alt":26.06,"az":52.6,"t":"2026-12-16T07:30:00Z","terrain":0.77},{"above_terrain":true,"airmass":2.21,"alt":26.81,"az":53.2,"t":"2026-12-16T07:35:00Z","terrain":0.87},{"above_terrain":true,"airmass":2.15,"alt":27.56,"az":53.7,"t":"2026-12-16T07:40:00Z","terrain":0.96},{"above_terrain":true,"airmass":2.1,"alt":28.32,"az":54.3,"t":"2026-12-16T07:45:00Z","terrain":1.02},{"above_terrain":true,"airmass":2.05,"alt":29.08,"az":54.8,"t":"2026-12-16T07:50:00Z","terrain":1.07},{"above_terrain":true,"airmass":2.0,"alt":29.85,"az":55.4,"t":"2026-12-16T07:55:00Z","terrain":1.07},{"above_terrain":true,"airmass":1.96,"alt":30.62,"az":55.9,"t":"2026-12-16T08:00:00Z","terrain":1.05},{"above_terrain":true,"airmass":1.91,"alt":31.4,"az":56.4,"t":"2026-12-16T08:05:00Z","terrain":1.06},{"above_terrain":true,"airmass":1.87,"alt":32.18,"az":56.9,"t":"2026-12-16T08:10:00Z","terrain":1.07},{"above_terrain":true,"airmass":1.83,"alt":32.96,"az":57.4,"t":"2026-12-16T08:15:00Z","terrain":1.15},{"above_terrain":true,"airmass":1.8,"alt":33.75,"az":57.9,"t":"2026-12-16T08:20:00Z","terrain":1.24},{"above_terrain":true,"airmass":1.76,"alt":34.55,"az":58.4,"t":"2026-12-16T08:25:00Z","terrain":1.23},{"above_terrain":true,"airmass":1.73,"alt":35.35,"az":58.9,"t":"2026-12-16T08:30:00Z","terrain":1.21},{"above_terrain":true,"airmass":1.69,"alt":36.15,"az":59.4,"t":"2026-12-16T08:35:00Z","terrain":1.19},{"above_terrain":true,"airmass":1.66,"alt":36.96,"az":59.9,"t":"2026-12-16T08:40:00Z","terrain":1.17},{"above_terrain":true,"airmass":1.63,"alt":37.77,"az":60.4,"t":"2026-12-16T08:45:00Z","terrain":1.14},{"above_terrain":true,"airmass":1.6,"alt":38.59,"az":60.8,"t":"2026-12-16T08:50:00Z","terrain":1.1},{"above_terrain":true,"airmass":1.57,"alt":39.41,"az":61.3,"t":"2026-12-16T08:55:00Z","terrain":1.07},{"above_terrain":true,"airmass":1.55,"alt":40.23,"az":61.8,"t":"2026-12-16T09:00:00Z","terrain":1.03},{"above_terrain":true,"airmass":1.52,"alt":41.06,"az":62.2,"t":"2026-12-16T09:05:00Z","terrain":0.99},{"above_terrain":true,"airmass":1.5,"alt":41.89,"az":62.7,"t":"2026-12-16T09:10:00Z","terrain":0.94},{"above_terrain":true,"airmass":1.47,"alt":42.72,"az":63.1,"t":"2026-12-16T09:15:00Z","terrain":0.89},{"above_terrain":true,"airmass":1.45,"alt":43.56,"az":63.6,"t":"2026-12-16T09:20:00Z","terrain":0.83},{"above_terrain":true,"airmass":1.43,"alt":44.4,"az":64.0,"t":"2026-12-16T09:25:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.41,"alt":45.24,"az":64.4,"t":"2026-12-16T09:30:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.39,"alt":46.08,"az":64.9,"t":"2026-12-16T09:35:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.37,"alt":46.93,"az":65.3,"t":"2026-12-16T09:40:00Z","terrain":0.79},{"above_terrain":true,"airmass":1.35,"alt":47.78,"az":65.7,"t":"2026-12-16T09:45:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.33,"alt":48.64,"az":66.1,"t":"2026-12-16T09:50:00Z","terrain":0.84},{"above_terrain":true,"airmass":1.31,"alt":49.5,"az":66.5,"t":"2026-12-16T09:55:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.3,"alt":50.36,"az":66.9,"t":"2026-12-16T10:00:00Z","terrain":0.92}],"transit":{"airmass":1.0,"alt":87.3,"az":356.1,"t":"2026-12-15T13:45:00Z"},"usable_hours":4.08,"verdict":"marginal","zenith_passage":true},"warnings":["No cloud data for this night (beyond the 4-day forecast, or not yet in the archive) \u2014 the score is geometry only."]}