{"assessment":{"best_window":{"end":"2031-01-30T21:05Z","end_local":"23:05","hours":3.92,"label":"marginal","mean_quality":0.52,"start":"2031-01-30T17:10Z","start_local":"19:10"},"cost":{"altitude":7.94,"clouds":0.0,"darkness":1.33,"moon":1.34},"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":73,"cloud":null,"high":null,"iso":"2031-01-30T16:00Z","label":"unusable","low":null,"mid":null,"moon_alt":65,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"18:00","wind":null},{"alt":62,"cloud":null,"high":null,"iso":"2031-01-30T17:00Z","label":"poor","low":null,"mid":null,"moon_alt":65,"precip":null,"q":0.3,"rh":null,"sky":"astronomical twilight","temp":null,"time":"19:00","wind":null},{"alt":51,"cloud":null,"high":null,"iso":"2031-01-30T18:00Z","label":"marginal","low":null,"mid":null,"moon_alt":59,"precip":null,"q":0.57,"rh":null,"sky":"night","temp":null,"time":"20:00","wind":null},{"alt":40,"cloud":null,"high":null,"iso":"2031-01-30T19:00Z","label":"marginal","low":null,"mid":null,"moon_alt":50,"precip":null,"q":0.55,"rh":null,"sky":"night","temp":null,"time":"21:00","wind":null},{"alt":30,"cloud":null,"high":null,"iso":"2031-01-30T20:00Z","label":"marginal","low":null,"mid":null,"moon_alt":40,"precip":null,"q":0.52,"rh":null,"sky":"night","temp":null,"time":"22:00","wind":null},{"alt":21,"cloud":null,"high":null,"iso":"2031-01-30T21:00Z","label":"marginal","low":null,"mid":null,"moon_alt":29,"precip":null,"q":0.3,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":12,"cloud":null,"high":null,"iso":"2031-01-30T22:00Z","label":"unusable","low":null,"mid":null,"moon_alt":18,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":5,"cloud":null,"high":null,"iso":"2031-01-30T23:00Z","label":"unusable","low":null,"mid":null,"moon_alt":8,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":-1,"cloud":null,"high":null,"iso":"2031-01-31T00:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-2,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":-5,"cloud":null,"high":null,"iso":"2031-01-31T01:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-11,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":-7,"cloud":null,"high":null,"iso":"2031-01-31T02:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-19,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"04:00","wind":null},{"alt":-6,"cloud":null,"high":null,"iso":"2031-01-31T03:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-25,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"05:00","wind":null},{"alt":-4,"cloud":null,"high":null,"iso":"2031-01-31T04:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-29,"precip":null,"q":0.0,"rh":null,"sky":"astronomical twilight","temp":null,"time":"06:00","wind":null},{"alt":0,"cloud":null,"high":null,"iso":"2031-01-31T05:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-30,"precip":null,"q":0.0,"rh":null,"sky":"nautical twilight","temp":null,"time":"07:00","wind":null}],"peak_quality":0.6,"peak_sky":0.6,"quality_hours":2.26,"reasons":["the target being low or below 20\u00b0 cost 7.9 quality-hours","moonlight cost 1.3 quality-hours","daylight and twilight cost 1.3 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":34,"score_weather":null,"sky_hours":2.26,"verdict":"unknown","verdict_astronomy":"poor","weather_known":false,"windows":[{"end":"2031-01-30T16:05Z","end_local":"18:05","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2031-01-30T15:30Z","start_local":"17:30"},{"end":"2031-01-30T17:10Z","end_local":"19:10","hours":1.08,"label":"poor","mean_quality":0.19,"start":"2031-01-30T16:05Z","start_local":"18:05"},{"end":"2031-01-30T21:05Z","end_local":"23:05","hours":3.92,"label":"marginal","mean_quality":0.52,"start":"2031-01-30T17:10Z","start_local":"19:10"},{"end":"2031-01-30T21:10Z","end_local":"23:10","hours":0.08,"label":"poor","mean_quality":0.28,"start":"2031-01-30T21:05Z","start_local":"23:05"},{"end":"2031-01-31T05:35Z","end_local":"07:35","hours":8.42,"label":"unusable","mean_quality":0.0,"start":"2031-01-30T21:10Z","start_local":"23:10"}]},"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":"2031-01-30T17:09:17Z","dark_hours":10.83,"dark_to":"2031-01-31T03:58:59Z","moon":{"illumination":0.56,"phase":"waxing gibbous","waxing":true},"moon_free_dark_hours":4.18,"moonrise":"2031-01-31T09:54:30Z","moonset":"2031-01-30T23:46:21Z","sunrise":"2031-01-31T05:34:29Z","sunset":"2031-01-30T15:33:33Z","twilight":{"astronomical":{"end":"2031-01-30T17:09:17Z","start":"2031-01-31T03:58:59Z"},"civil":{"end":"2031-01-30T16:03:09Z","start":"2031-01-31T05:04:58Z"},"nautical":{"end":"2031-01-30T16:36:34Z","start":"2031-01-31T04:31:38Z"}},"window_end":"2031-01-31T10:00:00Z","window_start":"2031-01-30T10:00:00Z"},"night_date":"2031-01-30","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":1.16,"alt":59.7,"t":"2031-01-30T17:10:00Z"},"dec":41.26875,"dec_of_date":41.4387,"dec_str":"+41\u00b0 16' 07.5\"","good_hours":2.92,"limit_rise":"2031-01-31T07:43:43Z","limit_set":"2031-01-30T21:06:17Z","max_az_rate_deg_per_min":24.35,"moon_separation":36.9,"never_rises":false,"ra":10.68470833,"ra_of_date":11.1117,"ra_str":"00h 42m 44.3s","resolved":{"common_name":"Andromeda Galaxy","dec":41.26875,"morphology":"SA(s)b","name":"M 31","ra":10.68470833,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M31","source":"sesame","type":"AGN","type_text":"galaxy with an active nucleus","vmag":3.44},"summary":"Only 2.9 h above 30\u00b0, 4.0 h above 20\u00b0 \u2014 usable, at high airmass.","terrain":{"available":true,"behind_at":"2031-01-30T23:54:18Z","blocked_dark_hours":0,"clears_at":"2031-01-31T05:09:25Z","rise_az":66.6},"track":[{"above_terrain":true,"airmass":1.51,"alt":41.27,"az":66.6,"t":"2031-01-30T10:00:00Z","terrain":0.89},{"above_terrain":true,"airmass":1.49,"alt":42.13,"az":67.1,"t":"2031-01-30T10:05:00Z","terrain":0.94},{"above_terrain":true,"airmass":1.46,"alt":42.99,"az":67.6,"t":"2031-01-30T10:10:00Z","terrain":0.97},{"above_terrain":true,"airmass":1.44,"alt":43.86,"az":68.1,"t":"2031-01-30T10:15:00Z","terrain":1.0},{"above_terrain":true,"airmass":1.42,"alt":44.73,"az":68.6,"t":"2031-01-30T10:20:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.4,"alt":45.6,"az":69.1,"t":"2031-01-30T10:25:00Z","terrain":1.06},{"above_terrain":true,"airmass":1.38,"alt":46.48,"az":69.6,"t":"2031-01-30T10:30:00Z","terrain":1.15},{"above_terrain":true,"airmass":1.36,"alt":47.36,"az":70.1,"t":"2031-01-30T10:35:00Z","terrain":1.22},{"above_terrain":true,"airmass":1.34,"alt":48.24,"az":70.5,"t":"2031-01-30T10:40:00Z","terrain":1.24},{"above_terrain":true,"airmass":1.32,"alt":49.12,"az":71.0,"t":"2031-01-30T10:45:00Z","terrain":1.26},{"above_terrain":true,"airmass":1.3,"alt":50.01,"az":71.5,"t":"2031-01-30T10:50:00Z","terrain":1.23},{"above_terrain":true,"airmass":1.29,"alt":50.9,"az":72.0,"t":"2031-01-30T10:55:00Z","terrain":1.2},{"above_terrain":true,"airmass":1.27,"alt":51.79,"az":72.5,"t":"2031-01-30T11:00:00Z","terrain":1.1},{"above_terrain":true,"airmass":1.26,"alt":52.68,"az":72.9,"t":"2031-01-30T11:05:00Z","terrain":1.0},{"above_terrain":true,"airmass":1.24,"alt":53.58,"az":73.4,"t":"2031-01-30T11:10:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.23,"alt":54.48,"az":73.9,"t":"2031-01-30T11:15:00Z","terrain":0.76},{"above_terrain":true,"airmass":1.21,"alt":55.38,"az":74.3,"t":"2031-01-30T11:20:00Z","terrain":0.7},{"above_terrain":true,"airmass":1.2,"alt":56.28,"az":74.8,"t":"2031-01-30T11:25:00Z","terrain":0.65},{"above_terrain":true,"airmass":1.19,"alt":57.18,"az":75.3,"t":"2031-01-30T11:30:00Z","terrain":0.66},{"above_terrain":true,"airmass":1.18,"alt":58.09,"az":75.7,"t":"2031-01-30T11:35:00Z","terrain":0.7},{"above_terrain":true,"airmass":1.17,"alt":59.0,"az":76.2,"t":"2031-01-30T11:40:00Z","terrain":0.72},{"above_terrain":true,"airmass":1.16,"alt":59.91,"az":76.7,"t":"2031-01-30T11:45:00Z","terrain":0.71},{"above_terrain":true,"airmass":1.14,"alt":60.82,"az":77.1,"t":"2031-01-30T11:50:00Z","terrain":0.69},{"above_terrain":true,"airmass":1.13,"alt":61.73,"az":77.6,"t":"2031-01-30T11:55:00Z","terrain":0.66},{"above_terrain":true,"airmass":1.13,"alt":62.65,"az":78.0,"t":"2031-01-30T12:00:00Z","terrain":0.63},{"above_terrain":true,"airmass":1.12,"alt":63.56,"az":78.5,"t":"2031-01-30T12:05:00Z","terrain":0.6},{"above_terrain":true,"airmass":1.11,"alt":64.48,"az":79.0,"t":"2031-01-30T12:10:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.1,"alt":65.4,"az":79.4,"t":"2031-01-30T12:15:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.09,"alt":66.32,"az":79.9,"t":"2031-01-30T12:20:00Z","terrain":0.47},{"above_terrain":true,"airmass":1.08,"alt":67.24,"az":80.3,"t":"2031-01-30T12:25:00Z","terrain":0.54},{"above_terrain":true,"airmass":1.08,"alt":68.17,"az":80.8,"t":"2031-01-30T12:30:00Z","terrain":0.64},{"above_terrain":true,"airmass":1.07,"alt":69.09,"az":81.3,"t":"2031-01-30T12:35:00Z","terrain":0.71},{"above_terrain":true,"airmass":1.06,"alt":70.02,"az":81.7,"t":"2031-01-30T12:40:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.06,"alt":70.94,"az":82.2,"t":"2031-01-30T12:45:00Z","terrain":0.74},{"above_terrain":true,"airmass":1.05,"alt":71.87,"az":82.7,"t":"2031-01-30T12:50:00Z","terrain":0.58},{"above_terrain":true,"airmass":1.05,"alt":72.8,"az":83.1,"t":"2031-01-30T12:55:00Z","terrain":0.46},{"above_terrain":true,"airmass":1.04,"alt":73.73,"az":83.6,"t":"2031-01-30T13:00:00Z","terrain":0.42},{"above_terrain":true,"airmass":1.04,"alt":74.66,"az":84.1,"t":"2031-01-30T13:05:00Z","terrain":0.37},{"above_terrain":true,"airmass":1.03,"alt":75.59,"az":84.6,"t":"2031-01-30T13:10:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.03,"alt":76.52,"az":85.1,"t":"2031-01-30T13:15:00Z","terrain":0.29},{"above_terrain":true,"airmass":1.02,"alt":77.46,"az":85.6,"t":"2031-01-30T13:20:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.02,"alt":78.39,"az":86.1,"t":"2031-01-30T13:25:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.02,"alt":79.32,"az":86.6,"t":"2031-01-30T13:30:00Z","terrain":0.11},{"above_terrain":true,"airmass":1.01,"alt":80.26,"az":87.2,"t":"2031-01-30T13:35:00Z","terrain":0.05},{"above_terrain":true,"airmass":1.01,"alt":81.19,"az":87.7,"t":"2031-01-30T13:40:00Z","terrain":-0.03},{"above_terrain":true,"airmass":1.01,"alt":82.13,"az":88.3,"t":"2031-01-30T13:45:00Z","terrain":-0.12},{"above_terrain":true,"airmass":1.01,"alt":83.06,"az":89.0,"t":"2031-01-30T13:50:00Z","terrain":-0.2},{"above_terrain":true,"airmass":1.01,"alt":84.0,"az":89.8,"t":"2031-01-30T13:55:00Z","terrain":-0.22},{"above_terrain":true,"airmass":1.0,"alt":84.94,"az":90.6,"t":"2031-01-30T14:00:00Z","terrain":-0.14},{"above_terrain":true,"airmass":1.0,"alt":85.87,"az":91.7,"t":"2031-01-30T14:05:00Z","terrain":0.04},{"above_terrain":true,"airmass":1.0,"alt":86.81,"az":93.2,"t":"2031-01-30T14:10:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.0,"alt":87.74,"az":95.5,"t":"2031-01-30T14:15:00Z","terrain":0.46},{"above_terrain":true,"airmass":1.0,"alt":88.67,"az":100.4,"t":"2031-01-30T14:20:00Z","terrain":0.19},{"above_terrain":true,"airmass":1.0,"alt":89.55,"az":124.4,"t":"2031-01-30T14:25:00Z","terrain":-1.54},{"above_terrain":true,"airmass":1.0,"alt":89.38,"az":246.1,"t":"2031-01-30T14:30:00Z","terrain":1.16},{"above_terrain":true,"airmass":1.0,"alt":88.47,"az":261.1,"t":"2031-01-30T14:35:00Z","terrain":0.85},{"above_terrain":true,"airmass":1.0,"alt":87.54,"az":265.1,"t":"2031-01-30T14:40:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.0,"alt":86.61,"az":267.2,"t":"2031-01-30T14:45:00Z","terrain":0.59},{"above_terrain":true,"airmass":1.0,"alt":85.67,"az":268.5,"t":"2031-01-30T14:50:00Z","terrain":0.7},{"above_terrain":true,"airmass":1.0,"alt":84.74,"az":269.6,"t":"2031-01-30T14:55:00Z","terrain":0.83},{"above_terrain":true,"airmass":1.01,"alt":83.8,"az":270.4,"t":"2031-01-30T15:00:00Z","terrain":0.85},{"above_terrain":true,"airmass":1.01,"alt":82.87,"az":271.1,"t":"2031-01-30T15:05:00Z","terrain":0.73},{"above_terrain":true,"airmass":1.01,"alt":81.93,"az":271.8,"t":"2031-01-30T15:10:00Z","terrain":0.5},{"above_terrain":true,"airmass":1.01,"alt":81.0,"az":272.4,"t":"2031-01-30T15:15:00Z","terrain":0.31},{"above_terrain":true,"airmass":1.01,"alt":80.06,"az":273.0,"t":"2031-01-30T15:20:00Z","terrain":0.15},{"above_terrain":true,"airmass":1.02,"alt":79.13,"az":273.5,"t":"2031-01-30T15:25:00Z","terrain":0.05},{"above_terrain":true,"airmass":1.02,"alt":78.19,"az":274.0,"t":"2031-01-30T15:30:00Z","terrain":-0.03},{"above_terrain":true,"airmass":1.02,"alt":77.26,"az":274.5,"t":"2031-01-30T15:35:00Z","terrain":0.04},{"above_terrain":true,"airmass":1.03,"alt":76.33,"az":275.0,"t":"2031-01-30T15:40:00Z","terrain":0.09},{"above_terrain":true,"airmass":1.03,"alt":75.39,"az":275.5,"t":"2031-01-30T15:45:00Z","terrain":0.04},{"above_terrain":true,"airmass":1.04,"alt":74.46,"az":276.0,"t":"2031-01-30T15:50:00Z","terrain":-0.01},{"above_terrain":true,"airmass":1.04,"alt":73.53,"az":276.5,"t":"2031-01-30T15:55:00Z","terrain":-0.08},{"above_terrain":true,"airmass":1.05,"alt":72.6,"az":277.0,"t":"2031-01-30T16:00:00Z","terrain":-0.14},{"above_terrain":true,"airmass":1.05,"alt":71.67,"az":277.4,"t":"2031-01-30T16:05:00Z","terrain":-0.11},{"above_terrain":true,"airmass":1.06,"alt":70.75,"az":277.9,"t":"2031-01-30T16:10:00Z","terrain":-0.09},{"above_terrain":true,"airmass":1.06,"alt":69.82,"az":278.4,"t":"2031-01-30T16:15:00Z","terrain":-0.06},{"above_terrain":true,"airmass":1.07,"alt":68.89,"az":278.8,"t":"2031-01-30T16:20:00Z","terrain":-0.03},{"above_terrain":true,"airmass":1.08,"alt":67.97,"az":279.3,"t":"2031-01-30T16:25:00Z","terrain":-0.05},{"above_terrain":true,"airmass":1.09,"alt":67.05,"az":279.8,"t":"2031-01-30T16:30:00Z","terrain":-0.1},{"above_terrain":true,"airmass":1.09,"alt":66.13,"az":280.2,"t":"2031-01-30T16:35:00Z","terrain":-0.1},{"above_terrain":true,"airmass":1.1,"alt":65.21,"az":280.7,"t":"2031-01-30T16:40:00Z","terrain":-0.02},{"above_terrain":true,"airmass":1.11,"alt":64.29,"az":281.1,"t":"2031-01-30T16:45:00Z","terrain":0.01},{"above_terrain":true,"airmass":1.12,"alt":63.37,"az":281.6,"t":"2031-01-30T16:50:00Z","terrain":-0.06},{"above_terrain":true,"airmass":1.13,"alt":62.45,"az":282.0,"t":"2031-01-30T16:55:00Z","terrain":-0.12},{"above_terrain":true,"airmass":1.14,"alt":61.54,"az":282.5,"t":"2031-01-30T17:00:00Z","terrain":-0.07},{"above_terrain":true,"airmass":1.15,"alt":60.63,"az":283.0,"t":"2031-01-30T17:05:00Z","terrain":-0.01},{"above_terrain":true,"airmass":1.16,"alt":59.71,"az":283.4,"t":"2031-01-30T17:10:00Z","terrain":0.05},{"above_terrain":true,"airmass":1.17,"alt":58.8,"az":283.9,"t":"2031-01-30T17:15:00Z","terrain":0.11},{"above_terrain":true,"airmass":1.18,"alt":57.9,"az":284.4,"t":"2031-01-30T17:20:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.19,"alt":56.99,"az":284.8,"t":"2031-01-30T17:25:00Z","terrain":0.21},{"above_terrain":true,"airmass":1.2,"alt":56.09,"az":285.3,"t":"2031-01-30T17:30:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.22,"alt":55.19,"az":285.8,"t":"2031-01-30T17:35:00Z","terrain":0.22},{"above_terrain":true,"airmass":1.23,"alt":54.29,"az":286.2,"t":"2031-01-30T17:40:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.24,"alt":53.39,"az":286.7,"t":"2031-01-30T17:45:00Z","terrain":0.32},{"above_terrain":true,"airmass":1.26,"alt":52.49,"az":287.2,"t":"2031-01-30T17:50:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.27,"alt":51.6,"az":287.6,"t":"2031-01-30T17:55:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.29,"alt":50.71,"az":288.1,"t":"2031-01-30T18:00:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.31,"alt":49.82,"az":288.6,"t":"2031-01-30T18:05:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.33,"alt":48.93,"az":289.1,"t":"2031-01-30T18:10:00Z","terrain":0.19},{"above_terrain":true,"airmass":1.34,"alt":48.05,"az":289.6,"t":"2031-01-30T18:15:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.36,"alt":47.17,"az":290.0,"t":"2031-01-30T18:20:00Z","terrain":0.3},{"above_terrain":true,"airmass":1.38,"alt":46.29,"az":290.5,"t":"2031-01-30T18:25:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.4,"alt":45.42,"az":291.0,"t":"2031-01-30T18:30:00Z","terrain":0.49},{"above_terrain":true,"airmass":1.42,"alt":44.55,"az":291.5,"t":"2031-01-30T18:35:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.45,"alt":43.68,"az":292.0,"t":"2031-01-30T18:40:00Z","terrain":0.54},{"above_terrain":true,"airmass":1.47,"alt":42.81,"az":292.5,"t":"2031-01-30T18:45:00Z","terrain":0.41},{"above_terrain":true,"airmass":1.49,"alt":41.95,"az":293.0,"t":"2031-01-30T18:50:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.52,"alt":41.09,"az":293.5,"t":"2031-01-30T18:55:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.55,"alt":40.23,"az":294.0,"t":"2031-01-30T19:00:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.57,"alt":39.38,"az":294.6,"t":"2031-01-30T19:05:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.6,"alt":38.53,"az":295.1,"t":"2031-01-30T19:10:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.63,"alt":37.68,"az":295.6,"t":"2031-01-30T19:15:00Z","terrain":0.29},{"above_terrain":true,"airmass":1.66,"alt":36.84,"az":296.1,"t":"2031-01-30T19:20:00Z","terrain":0.32},{"above_terrain":true,"airmass":1.7,"alt":36.0,"az":296.6,"t":"2031-01-30T19:25:00Z","terrain":0.29},{"above_terrain":true,"airmass":1.73,"alt":35.17,"az":297.2,"t":"2031-01-30T19:30:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.77,"alt":34.34,"az":297.7,"t":"2031-01-30T19:35:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.81,"alt":33.51,"az":298.2,"t":"2031-01-30T19:40:00Z","terrain":0.13},{"above_terrain":true,"airmass":1.85,"alt":32.69,"az":298.8,"t":"2031-01-30T19:45:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.89,"alt":31.87,"az":299.3,"t":"2031-01-30T19:50:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.93,"alt":31.06,"az":299.9,"t":"2031-01-30T19:55:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.98,"alt":30.25,"az":300.4,"t":"2031-01-30T20:00:00Z","terrain":0.35},{"above_terrain":true,"airmass":2.03,"alt":29.44,"az":301.0,"t":"2031-01-30T20:05:00Z","terrain":0.32},{"above_terrain":true,"airmass":2.08,"alt":28.64,"az":301.6,"t":"2031-01-30T20:10:00Z","terrain":0.19},{"above_terrain":true,"airmass":2.13,"alt":27.85,"az":302.1,"t":"2031-01-30T20:15:00Z","terrain":0.04},{"above_terrain":true,"airmass":2.19,"alt":27.06,"az":302.7,"t":"2031-01-30T20:20:00Z","terrain":-0.14},{"above_terrain":true,"airmass":2.25,"alt":26.27,"az":303.3,"t":"2031-01-30T20:25:00Z","terrain":-0.19},{"above_terrain":true,"airmass":2.31,"alt":25.49,"az":303.9,"t":"2031-01-30T20:30:00Z","terrain":-0.12},{"above_terrain":true,"airmass":2.38,"alt":24.72,"az":304.4,"t":"2031-01-30T20:35:00Z","terrain":-0.19},{"above_terrain":true,"airmass":2.45,"alt":23.95,"az":305.0,"t":"2031-01-30T20:40:00Z","terrain":-0.29},{"above_terrain":true,"airmass":2.53,"alt":23.18,"az":305.6,"t":"2031-01-30T20:45:00Z","terrain":-0.21},{"above_terrain":true,"airmass":2.61,"alt":22.43,"az":306.2,"t":"2031-01-30T20:50:00Z","terrain":-0.09},{"above_terrain":true,"airmass":2.69,"alt":21.67,"az":306.8,"t":"2031-01-30T20:55:00Z","terrain":0.13},{"above_terrain":true,"airmass":2.78,"alt":20.93,"az":307.5,"t":"2031-01-30T21:00:00Z","terrain":0.24},{"above_terrain":true,"airmass":2.88,"alt":20.19,"az":308.1,"t":"2031-01-30T21:05:00Z","terrain":0.31},{"above_terrain":true,"airmass":2.98,"alt":19.46,"az":308.7,"t":"2031-01-30T21:10:00Z","terrain":0.21},{"above_terrain":true,"airmass":3.09,"alt":18.73,"az":309.3,"t":"2031-01-30T21:15:00Z","terrain":0.19},{"above_terrain":true,"airmass":3.21,"alt":18.01,"az":310.0,"t":"2031-01-30T21:20:00Z","terrain":0.22},{"above_terrain":true,"airmass":3.33,"alt":17.29,"az":310.6,"t":"2031-01-30T21:25:00Z","terrain":0.31},{"above_terrain":true,"airmass":3.47,"alt":16.59,"az":311.3,"t":"2031-01-30T21:30:00Z","terrain":0.3},{"above_terrain":true,"airmass":3.61,"alt":15.89,"az":311.9,"t":"2031-01-30T21:35:00Z","terrain":0.16},{"above_terrain":true,"airmass":3.77,"alt":15.19,"az":312.6,"t":"2031-01-30T21:40:00Z","terrain":0.21},{"above_terrain":true,"airmass":3.94,"alt":14.51,"az":313.2,"t":"2031-01-30T21:45:00Z","terrain":0.32},{"above_terrain":true,"airmass":4.12,"alt":13.83,"az":313.9,"t":"2031-01-30T21:50:00Z","terrain":0.45},{"above_terrain":true,"airmass":4.32,"alt":13.16,"az":314.6,"t":"2031-01-30T21:55:00Z","terrain":0.52},{"above_terrain":true,"airmass":4.53,"alt":12.5,"az":315.3,"t":"2031-01-30T22:00:00Z","terrain":0.54},{"above_terrain":true,"airmass":4.77,"alt":11.84,"az":316.0,"t":"2031-01-30T22:05:00Z","terrain":0.48},{"above_terrain":true,"airmass":5.03,"alt":11.2,"az":316.7,"t":"2031-01-30T22:10:00Z","terrain":0.36},{"above_terrain":true,"airmass":5.31,"alt":10.56,"az":317.4,"t":"2031-01-30T22:15:00Z","terrain":0.31},{"above_terrain":true,"airmass":5.62,"alt":9.93,"az":318.1,"t":"2031-01-30T22:20:00Z","terrain":0.3},{"above_terrain":true,"airmass":5.97,"alt":9.31,"az":318.8,"t":"2031-01-30T22:25:00Z","terrain":-0.04},{"above_terrain":true,"airmass":6.36,"alt":8.69,"az":319.5,"t":"2031-01-30T22:30:00Z","terrain":-0.17},{"above_terrain":true,"airmass":6.79,"alt":8.09,"az":320.2,"t":"2031-01-30T22:35:00Z","terrain":-0.2},{"above_terrain":true,"airmass":7.27,"alt":7.5,"az":321.0,"t":"2031-01-30T22:40:00Z","terrain":-0.2},{"above_terrain":true,"airmass":7.82,"alt":6.91,"az":321.7,"t":"2031-01-30T22:45:00Z","terrain":0.09},{"above_terrain":true,"airmass":8.43,"alt":6.34,"az":322.5,"t":"2031-01-30T22:50:00Z","terrain":0.15},{"above_terrain":true,"airmass":9.14,"alt":5.77,"az":323.2,"t":"2031-01-30T22:55:00Z","terrain":0.02},{"above_terrain":true,"airmass":9.95,"alt":5.22,"az":324.0,"t":"2031-01-30T23:00:00Z","terrain":-0.2},{"above_terrain":true,"airmass":10.89,"alt":4.67,"az":324.7,"t":"2031-01-30T23:05:00Z","terrain":-0.2},{"above_terrain":true,"airmass":11.99,"alt":4.13,"az":325.5,"t":"2031-01-30T23:10:00Z","terrain":-0.22},{"above_terrain":true,"airmass":13.29,"alt":3.61,"az":326.3,"t":"2031-01-30T23:15:00Z","terrain":-0.28},{"above_terrain":true,"airmass":14.83,"alt":3.1,"az":327.1,"t":"2031-01-30T23:20:00Z","terrain":-0.38},{"above_terrain":true,"airmass":16.67,"alt":2.59,"az":327.9,"t":"2031-01-30T23:25:00Z","terrain":-0.25},{"above_terrain":true,"airmass":18.91,"alt":2.1,"az":328.7,"t":"2031-01-30T23:30:00Z","terrain":-0.16},{"above_terrain":true,"airmass":21.66,"alt":1.62,"az":329.5,"t":"2031-01-30T23:35:00Z","terrain":-0.24},{"above_terrain":true,"airmass":25.05,"alt":1.15,"az":330.3,"t":"2031-01-30T23:40:00Z","terrain":-0.36},{"above_terrain":true,"airmass":29.26,"alt":0.69,"az":331.1,"t":"2031-01-30T23:45:00Z","terrain":-0.36},{"above_terrain":true,"airmass":34.48,"alt":0.25,"az":331.9,"t":"2031-01-30T23:50:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-0.19,"az":332.8,"t":"2031-01-30T23:55:00Z","terrain":-0.12},{"above_terrain":false,"airmass":null,"alt":-0.61,"az":333.6,"t":"2031-01-31T00:00:00Z","terrain":-0.19},{"above_terrain":false,"airmass":null,"alt":-1.02,"az":334.5,"t":"2031-01-31T00:05:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-1.42,"az":335.3,"t":"2031-01-31T00:10:00Z","terrain":-0.67},{"above_terrain":false,"airmass":null,"alt":-1.8,"az":336.2,"t":"2031-01-31T00:15:00Z","terrain":-0.81},{"above_terrain":false,"airmass":null,"alt":-2.17,"az":337.0,"t":"2031-01-31T00:20:00Z","terrain":-0.72},{"above_terrain":false,"airmass":null,"alt":-2.53,"az":337.9,"t":"2031-01-31T00:25:00Z","terrain":-0.49},{"above_terrain":false,"airmass":null,"alt":-2.88,"az":338.8,"t":"2031-01-31T00:30:00Z","terrain":-0.69},{"above_terrain":false,"airmass":null,"alt":-3.21,"az":339.7,"t":"2031-01-31T00:35:00Z","terrain":-0.6},{"above_terrain":false,"airmass":null,"alt":-3.53,"az":340.5,"t":"2031-01-31T00:40:00Z","terrain":-0.48},{"above_terrain":false,"airmass":null,"alt":-3.83,"az":341.4,"t":"2031-01-31T00:45:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-4.12,"az":342.3,"t":"2031-01-31T00:50:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-4.4,"az":343.2,"t":"2031-01-31T00:55:00Z","terrain":-0.39},{"above_terrain":false,"airmass":null,"alt":-4.66,"az":344.1,"t":"2031-01-31T01:00:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-4.91,"az":345.0,"t":"2031-01-31T01:05:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-5.15,"az":346.0,"t":"2031-01-31T01:10:00Z","terrain":-0.54},{"above_terrain":false,"airmass":null,"alt":-5.37,"az":346.9,"t":"2031-01-31T01:15:00Z","terrain":-0.44},{"above_terrain":false,"airmass":null,"alt":-5.57,"az":347.8,"t":"2031-01-31T01:20:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-5.76,"az":348.7,"t":"2031-01-31T01:25:00Z","terrain":-0.04},{"above_terrain":false,"airmass":null,"alt":-5.94,"az":349.7,"t":"2031-01-31T01:30:00Z","terrain":0.09},{"above_terrain":false,"airmass":null,"alt":-6.1,"az":350.6,"t":"2031-01-31T01:35:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-6.24,"az":351.5,"t":"2031-01-31T01:40:00Z","terrain":0.21},{"above_terrain":false,"airmass":null,"alt":-6.38,"az":352.5,"t":"2031-01-31T01:45:00Z","terrain":0.37},{"above_terrain":false,"airmass":null,"alt":-6.49,"az":353.4,"t":"2031-01-31T01:50:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-6.59,"az":354.3,"t":"2031-01-31T01:55:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-6.68,"az":355.3,"t":"2031-01-31T02:00:00Z","terrain":0.66},{"above_terrain":false,"airmass":null,"alt":-6.74,"az":356.2,"t":"2031-01-31T02:05:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-6.8,"az":357.2,"t":"2031-01-31T02:10:00Z","terrain":0.73},{"above_terrain":false,"airmass":null,"alt":-6.84,"az":358.1,"t":"2031-01-31T02:15:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-6.86,"az":359.1,"t":"2031-01-31T02:20:00Z","terrain":0.61},{"above_terrain":false,"airmass":null,"alt":-6.87,"az":360.0,"t":"2031-01-31T02:25:00Z","terrain":0.5},{"above_terrain":false,"airmass":null,"alt":-6.86,"az":0.9,"t":"2031-01-31T02:30:00Z","terrain":0.38},{"above_terrain":false,"airmass":null,"alt":-6.84,"az":1.9,"t":"2031-01-31T02:35:00Z","terrain":0.15},{"above_terrain":false,"airmass":null,"alt":-6.8,"az":2.8,"t":"2031-01-31T02:40:00Z","terrain":-0.09},{"above_terrain":false,"airmass":null,"alt":-6.74,"az":3.8,"t":"2031-01-31T02:45:00Z","terrain":-0.25},{"above_terrain":false,"airmass":null,"alt":-6.68,"az":4.7,"t":"2031-01-31T02:50:00Z","terrain":-0.39},{"above_terrain":false,"airmass":null,"alt":-6.59,"az":5.7,"t":"2031-01-31T02:55:00Z","terrain":-0.54},{"above_terrain":false,"airmass":null,"alt":-6.49,"az":6.6,"t":"2031-01-31T03:00:00Z","terrain":-0.48},{"above_terrain":false,"airmass":null,"alt":-6.38,"az":7.5,"t":"2031-01-31T03:05:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-6.24,"az":8.5,"t":"2031-01-31T03:10:00Z","terrain":-0.53},{"above_terrain":false,"airmass":null,"alt":-6.1,"az":9.4,"t":"2031-01-31T03:15:00Z","terrain":-0.64},{"above_terrain":false,"airmass":null,"alt":-5.94,"az":10.3,"t":"2031-01-31T03:20:00Z","terrain":-0.53},{"above_terrain":false,"airmass":null,"alt":-5.76,"az":11.3,"t":"2031-01-31T03:25:00Z","terrain":-0.34},{"above_terrain":false,"airmass":null,"alt":-5.57,"az":12.2,"t":"2031-01-31T03:30:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-5.37,"az":13.1,"t":"2031-01-31T03:35:00Z","terrain":-0.05},{"above_terrain":false,"airmass":null,"alt":-5.15,"az":14.0,"t":"2031-01-31T03:40:00Z","terrain":0.1},{"above_terrain":false,"airmass":null,"alt":-4.91,"az":15.0,"t":"2031-01-31T03:45:00Z","terrain":0.39},{"above_terrain":false,"airmass":null,"alt":-4.66,"az":15.9,"t":"2031-01-31T03:50:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-4.4,"az":16.8,"t":"2031-01-31T03:55:00Z","terrain":0.47},{"above_terrain":false,"airmass":null,"alt":-4.12,"az":17.7,"t":"2031-01-31T04:00:00Z","terrain":0.51},{"above_terrain":false,"airmass":null,"alt":-3.83,"az":18.6,"t":"2031-01-31T04:05:00Z","terrain":0.58},{"above_terrain":false,"airmass":null,"alt":-3.53,"az":19.5,"t":"2031-01-31T04:10:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-3.21,"az":20.3,"t":"2031-01-31T04:15:00Z","terrain":0.68},{"above_terrain":false,"airmass":null,"alt":-2.88,"az":21.2,"t":"2031-01-31T04:20:00Z","terrain":0.76},{"above_terrain":false,"airmass":null,"alt":-2.53,"az":22.1,"t":"2031-01-31T04:25:00Z","terrain":1.01},{"above_terrain":false,"airmass":null,"alt":-2.17,"az":23.0,"t":"2031-01-31T04:30:00Z","terrain":1.15},{"above_terrain":false,"airmass":null,"alt":-1.8,"az":23.8,"t":"2031-01-31T04:35:00Z","terrain":0.96},{"above_terrain":false,"airmass":null,"alt":-1.42,"az":24.7,"t":"2031-01-31T04:40:00Z","terrain":1.13},{"above_terrain":false,"airmass":null,"alt":-1.02,"az":25.5,"t":"2031-01-31T04:45:00Z","terrain":1.28},{"above_terrain":false,"airmass":null,"alt":-0.61,"az":26.4,"t":"2031-01-31T04:50:00Z","terrain":1.32},{"above_terrain":false,"airmass":null,"alt":-0.19,"az":27.2,"t":"2031-01-31T04:55:00Z","terrain":1.26},{"above_terrain":false,"airmass":34.49,"alt":0.24,"az":28.1,"t":"2031-01-31T05:00:00Z","terrain":1.18},{"above_terrain":false,"airmass":29.26,"alt":0.69,"az":28.9,"t":"2031-01-31T05:05:00Z","terrain":1.02},{"above_terrain":true,"airmass":25.05,"alt":1.15,"az":29.7,"t":"2031-01-31T05:10:00Z","terrain":1.11},{"above_terrain":true,"airmass":21.66,"alt":1.62,"az":30.5,"t":"2031-01-31T05:15:00Z","terrain":1.23},{"above_terrain":true,"airmass":18.92,"alt":2.1,"az":31.3,"t":"2031-01-31T05:20:00Z","terrain":1.32},{"above_terrain":true,"airmass":16.68,"alt":2.59,"az":32.1,"t":"2031-01-31T05:25:00Z","terrain":1.29},{"above_terrain":true,"airmass":14.83,"alt":3.09,"az":32.9,"t":"2031-01-31T05:30:00Z","terrain":1.02},{"above_terrain":true,"airmass":13.29,"alt":3.61,"az":33.7,"t":"2031-01-31T05:35:00Z","terrain":0.59},{"above_terrain":true,"airmass":12.0,"alt":4.13,"az":34.5,"t":"2031-01-31T05:40:00Z","terrain":0.24},{"above_terrain":true,"airmass":10.9,"alt":4.67,"az":35.3,"t":"2031-01-31T05:45:00Z","terrain":0.04},{"above_terrain":true,"airmass":9.96,"alt":5.21,"az":36.0,"t":"2031-01-31T05:50:00Z","terrain":0.03},{"above_terrain":true,"airmass":9.14,"alt":5.77,"az":36.8,"t":"2031-01-31T05:55:00Z","terrain":-0.07},{"above_terrain":true,"airmass":8.44,"alt":6.34,"az":37.5,"t":"2031-01-31T06:00:00Z","terrain":-0.16},{"above_terrain":true,"airmass":7.82,"alt":6.91,"az":38.3,"t":"2031-01-31T06:05:00Z","terrain":-0.2},{"above_terrain":true,"airmass":7.27,"alt":7.5,"az":39.0,"t":"2031-01-31T06:10:00Z","terrain":-0.16},{"above_terrain":true,"airmass":6.79,"alt":8.09,"az":39.8,"t":"2031-01-31T06:15:00Z","terrain":-0.08},{"above_terrain":true,"airmass":6.36,"alt":8.69,"az":40.5,"t":"2031-01-31T06:20:00Z","terrain":-0.02},{"above_terrain":true,"airmass":5.97,"alt":9.3,"az":41.2,"t":"2031-01-31T06:25:00Z","terrain":0.04},{"above_terrain":true,"airmass":5.62,"alt":9.93,"az":41.9,"t":"2031-01-31T06:30:00Z","terrain":0.11},{"above_terrain":true,"airmass":5.31,"alt":10.56,"az":42.6,"t":"2031-01-31T06:35:00Z","terrain":0.2},{"above_terrain":true,"airmass":5.03,"alt":11.19,"az":43.3,"t":"2031-01-31T06:40:00Z","terrain":0.31},{"above_terrain":true,"airmass":4.77,"alt":11.84,"az":44.0,"t":"2031-01-31T06:45:00Z","terrain":0.42},{"above_terrain":true,"airmass":4.53,"alt":12.5,"az":44.7,"t":"2031-01-31T06:50:00Z","terrain":0.53},{"above_terrain":true,"airmass":4.32,"alt":13.16,"az":45.4,"t":"2031-01-31T06:55:00Z","terrain":0.62},{"above_terrain":true,"airmass":4.12,"alt":13.83,"az":46.1,"t":"2031-01-31T07:00:00Z","terrain":0.66},{"above_terrain":true,"airmass":3.94,"alt":14.51,"az":46.8,"t":"2031-01-31T07:05:00Z","terrain":0.62},{"above_terrain":true,"airmass":3.77,"alt":15.19,"az":47.4,"t":"2031-01-31T07:10:00Z","terrain":0.58},{"above_terrain":true,"airmass":3.61,"alt":15.89,"az":48.1,"t":"2031-01-31T07:15:00Z","terrain":0.52},{"above_terrain":true,"airmass":3.47,"alt":16.59,"az":48.7,"t":"2031-01-31T07:20:00Z","terrain":0.44},{"above_terrain":true,"airmass":3.33,"alt":17.29,"az":49.4,"t":"2031-01-31T07:25:00Z","terrain":0.41},{"above_terrain":true,"airmass":3.21,"alt":18.01,"az":50.0,"t":"2031-01-31T07:30:00Z","terrain":0.4},{"above_terrain":true,"airmass":3.09,"alt":18.73,"az":50.7,"t":"2031-01-31T07:35:00Z","terrain":0.49},{"above_terrain":true,"airmass":2.98,"alt":19.45,"az":51.3,"t":"2031-01-31T07:40:00Z","terrain":0.56},{"above_terrain":true,"airmass":2.88,"alt":20.19,"az":51.9,"t":"2031-01-31T07:45:00Z","terrain":0.62},{"above_terrain":true,"airmass":2.78,"alt":20.93,"az":52.5,"t":"2031-01-31T07:50:00Z","terrain":0.74},{"above_terrain":true,"airmass":2.69,"alt":21.67,"az":53.1,"t":"2031-01-31T07:55:00Z","terrain":0.86},{"above_terrain":true,"airmass":2.61,"alt":22.43,"az":53.8,"t":"2031-01-31T08:00:00Z","terrain":0.96},{"above_terrain":true,"airmass":2.53,"alt":23.18,"az":54.4,"t":"2031-01-31T08:05:00Z","terrain":1.03},{"above_terrain":true,"airmass":2.45,"alt":23.95,"az":55.0,"t":"2031-01-31T08:10:00Z","terrain":1.08},{"above_terrain":true,"airmass":2.38,"alt":24.72,"az":55.5,"t":"2031-01-31T08:15:00Z","terrain":1.06},{"above_terrain":true,"airmass":2.31,"alt":25.49,"az":56.1,"t":"2031-01-31T08:20:00Z","terrain":1.05},{"above_terrain":true,"airmass":2.25,"alt":26.27,"az":56.7,"t":"2031-01-31T08:25:00Z","terrain":1.06},{"above_terrain":true,"airmass":2.19,"alt":27.05,"az":57.3,"t":"2031-01-31T08:30:00Z","terrain":1.12},{"above_terrain":true,"airmass":2.13,"alt":27.84,"az":57.9,"t":"2031-01-31T08:35:00Z","terrain":1.23},{"above_terrain":true,"airmass":2.08,"alt":28.64,"az":58.4,"t":"2031-01-31T08:40:00Z","terrain":1.23},{"above_terrain":true,"airmass":2.03,"alt":29.44,"az":59.0,"t":"2031-01-31T08:45:00Z","terrain":1.21},{"above_terrain":true,"airmass":1.98,"alt":30.24,"az":59.6,"t":"2031-01-31T08:50:00Z","terrain":1.19},{"above_terrain":true,"airmass":1.93,"alt":31.05,"az":60.1,"t":"2031-01-31T08:55:00Z","terrain":1.16},{"above_terrain":true,"airmass":1.89,"alt":31.87,"az":60.7,"t":"2031-01-31T09:00:00Z","terrain":1.12},{"above_terrain":true,"airmass":1.85,"alt":32.69,"az":61.2,"t":"2031-01-31T09:05:00Z","terrain":1.07},{"above_terrain":true,"airmass":1.81,"alt":33.51,"az":61.8,"t":"2031-01-31T09:10:00Z","terrain":1.03},{"above_terrain":true,"airmass":1.77,"alt":34.33,"az":62.3,"t":"2031-01-31T09:15:00Z","terrain":0.98},{"above_terrain":true,"airmass":1.73,"alt":35.17,"az":62.8,"t":"2031-01-31T09:20:00Z","terrain":0.93},{"above_terrain":true,"airmass":1.7,"alt":36.0,"az":63.4,"t":"2031-01-31T09:25:00Z","terrain":0.86},{"above_terrain":true,"airmass":1.66,"alt":36.84,"az":63.9,"t":"2031-01-31T09:30:00Z","terrain":0.79},{"above_terrain":true,"airmass":1.63,"alt":37.68,"az":64.4,"t":"2031-01-31T09:35:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.6,"alt":38.53,"az":64.9,"t":"2031-01-31T09:40:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.57,"alt":39.38,"az":65.4,"t":"2031-01-31T09:45:00Z","terrain":0.8},{"above_terrain":true,"airmass":1.55,"alt":40.23,"az":66.0,"t":"2031-01-31T09:50:00Z","terrain":0.83},{"above_terrain":true,"airmass":1.52,"alt":41.09,"az":66.5,"t":"2031-01-31T09:55:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.49,"alt":41.95,"az":67.0,"t":"2031-01-31T10:00:00Z","terrain":0.93}],"transit":{"airmass":1.0,"alt":89.6,"az":124.4,"t":"2031-01-30T14:25:00Z"},"usable_hours":4.0,"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."]}