{"assessment":{"best_window":{"end":"2031-02-21T03:40Z","end_local":"05:40","hours":6.67,"label":"good","mean_quality":0.88,"start":"2031-02-20T21:00Z","start_local":"23:00"},"cost":{"altitude":4.44,"clouds":0.0,"darkness":0.75,"moon":0.0},"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 worth it \u2014 weather unknown","hourly":[{"alt":-29,"cloud":null,"high":null,"iso":"2031-02-20T16:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-12,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"18:00","wind":null},{"alt":-19,"cloud":null,"high":null,"iso":"2031-02-20T17:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-23,"precip":null,"q":0.0,"rh":null,"sky":"nautical twilight","temp":null,"time":"19:00","wind":null},{"alt":-8,"cloud":null,"high":null,"iso":"2031-02-20T18:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-33,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"20:00","wind":null},{"alt":3,"cloud":null,"high":null,"iso":"2031-02-20T19:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-43,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"21:00","wind":null},{"alt":14,"cloud":null,"high":null,"iso":"2031-02-20T20:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-51,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"22:00","wind":null},{"alt":25,"cloud":null,"high":null,"iso":"2031-02-20T21:00Z","label":"good","low":null,"mid":null,"moon_alt":-57,"precip":null,"q":0.6,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":35,"cloud":null,"high":null,"iso":"2031-02-20T22:00Z","label":"good","low":null,"mid":null,"moon_alt":-58,"precip":null,"q":0.83,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":43,"cloud":null,"high":null,"iso":"2031-02-20T23:00Z","label":"good","low":null,"mid":null,"moon_alt":-55,"precip":null,"q":0.89,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":49,"cloud":null,"high":null,"iso":"2031-02-21T00:00Z","label":"good","low":null,"mid":null,"moon_alt":-48,"precip":null,"q":0.92,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":50,"cloud":null,"high":null,"iso":"2031-02-21T01:00Z","label":"good","low":null,"mid":null,"moon_alt":-39,"precip":null,"q":0.93,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":47,"cloud":null,"high":null,"iso":"2031-02-21T02:00Z","label":"good","low":null,"mid":null,"moon_alt":-29,"precip":null,"q":0.91,"rh":null,"sky":"night","temp":null,"time":"04:00","wind":null},{"alt":40,"cloud":null,"high":null,"iso":"2031-02-21T03:00Z","label":"good","low":null,"mid":null,"moon_alt":-18,"precip":null,"q":0.87,"rh":null,"sky":"night","temp":null,"time":"05:00","wind":null},{"alt":31,"cloud":null,"high":null,"iso":"2031-02-21T04:00Z","label":"marginal","low":null,"mid":null,"moon_alt":-7,"precip":null,"q":0.4,"rh":null,"sky":"astronomical twilight","temp":null,"time":"06:00","wind":null},{"alt":21,"cloud":null,"high":null,"iso":"2031-02-21T05:00Z","label":"unusable","low":null,"mid":null,"moon_alt":4,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"07:00","wind":null}],"peak_quality":0.93,"peak_sky":0.93,"quality_hours":6.31,"reasons":["the target being low or below 20\u00b0 cost 4.4 quality-hours","daylight and twilight cost 0.7 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":93,"score_weather":null,"sky_hours":6.31,"verdict":"unknown","verdict_astronomy":"good","weather_known":false,"windows":[{"end":"2031-02-20T20:35Z","end_local":"22:35","hours":4.58,"label":"unusable","mean_quality":0.0,"start":"2031-02-20T16:00Z","start_local":"18:00"},{"end":"2031-02-20T21:00Z","end_local":"23:00","hours":0.42,"label":"marginal","mean_quality":0.5,"start":"2031-02-20T20:35Z","start_local":"22:35"},{"end":"2031-02-21T03:40Z","end_local":"05:40","hours":6.67,"label":"good","mean_quality":0.88,"start":"2031-02-20T21:00Z","start_local":"23:00"},{"end":"2031-02-21T04:10Z","end_local":"06:10","hours":0.5,"label":"marginal","mean_quality":0.41,"start":"2031-02-21T03:40Z","start_local":"05:40"},{"end":"2031-02-21T04:45Z","end_local":"06:45","hours":0.58,"label":"poor","mean_quality":0.1,"start":"2031-02-21T04:10Z","start_local":"06:10"},{"end":"2031-02-21T05:10Z","end_local":"07:10","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2031-02-21T04:45Z","start_local":"06:45"}]},"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":"2031-02-20T17:32:57Z","dark_hours":10.05,"dark_to":"2031-02-21T03:35:56Z","moon":{"illumination":0.009,"phase":"new moon","waxing":false},"moon_free_dark_hours":10.03,"moonrise":"2031-02-21T04:39:06Z","moonset":"2031-02-20T14:48:44Z","sunrise":"2031-02-21T05:08:34Z","sunset":"2031-02-20T16:00:06Z","twilight":{"astronomical":{"end":"2031-02-20T17:32:57Z","start":"2031-02-21T03:35:56Z"},"civil":{"end":"2031-02-20T16:28:23Z","start":"2031-02-21T04:40:23Z"},"nautical":{"end":"2031-02-20T17:00:46Z","start":"2031-02-21T04:08:04Z"}},"window_end":"2031-02-21T10:00:00Z","window_start":"2031-02-20T10:00:00Z"},"night_date":"2031-02-20","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":1.3,"alt":50.2,"t":"2031-02-21T00:50:00Z"},"dec":2.05238823,"dec_of_date":1.8805,"dec_str":"+02\u00b0 03' 08.6\"","good_hours":6.17,"limit_rise":"2031-02-20T20:31:03Z","limit_set":"2031-02-21T05:06:23Z","max_az_rate_deg_per_min":0.0,"moon_separation":135.5,"never_rises":false,"ra":187.27791594,"ra_of_date":187.6761,"ra_str":"12h 29m 06.7s","resolved":{"dec":2.05238823,"morphology":"E3","name":"3C 273","ra":187.27791594,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=3C%20273","source":"sesame","type":"BLL","type_text":"BL Lac object \u2014 a blazar","vmag":14.83},"summary":"6.2 dark hours above 30\u00b0 \u2014 a proper target for this night.","terrain":{"available":true,"behind_at":"2031-02-21T06:52:24Z","blocked_dark_hours":0,"clears_at":"2031-02-20T18:43:02Z","rise_az":87.8},"track":[{"above_terrain":false,"airmass":null,"alt":-31.73,"az":307.0,"t":"2031-02-20T10:00:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-32.47,"az":308.2,"t":"2031-02-20T10:05:00Z","terrain":0.29},{"above_terrain":false,"airmass":null,"alt":-33.2,"az":309.4,"t":"2031-02-20T10:10:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-33.91,"az":310.7,"t":"2031-02-20T10:15:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-34.62,"az":311.9,"t":"2031-02-20T10:20:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-35.3,"az":313.2,"t":"2031-02-20T10:25:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-35.98,"az":314.5,"t":"2031-02-20T10:30:00Z","terrain":0.52},{"above_terrain":false,"airmass":null,"alt":-36.64,"az":315.8,"t":"2031-02-20T10:35:00Z","terrain":0.49},{"above_terrain":false,"airmass":null,"alt":-37.28,"az":317.2,"t":"2031-02-20T10:40:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-37.91,"az":318.5,"t":"2031-02-20T10:45:00Z","terrain":0.08},{"above_terrain":false,"airmass":null,"alt":-38.52,"az":319.9,"t":"2031-02-20T10:50:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-39.12,"az":321.3,"t":"2031-02-20T10:55:00Z","terrain":-0.06},{"above_terrain":false,"airmass":null,"alt":-39.69,"az":322.8,"t":"2031-02-20T11:00:00Z","terrain":0.11},{"above_terrain":false,"airmass":null,"alt":-40.25,"az":324.3,"t":"2031-02-20T11:05:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-40.78,"az":325.7,"t":"2031-02-20T11:10:00Z","terrain":-0.23},{"above_terrain":false,"airmass":null,"alt":-41.3,"az":327.3,"t":"2031-02-20T11:15:00Z","terrain":-0.35},{"above_terrain":false,"airmass":null,"alt":-41.8,"az":328.8,"t":"2031-02-20T11:20:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-42.27,"az":330.4,"t":"2031-02-20T11:25:00Z","terrain":-0.36},{"above_terrain":false,"airmass":null,"alt":-42.72,"az":331.9,"t":"2031-02-20T11:30:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-43.15,"az":333.5,"t":"2031-02-20T11:35:00Z","terrain":-0.18},{"above_terrain":false,"airmass":null,"alt":-43.56,"az":335.2,"t":"2031-02-20T11:40:00Z","terrain":-0.63},{"above_terrain":false,"airmass":null,"alt":-43.94,"az":336.8,"t":"2031-02-20T11:45:00Z","terrain":-0.75},{"above_terrain":false,"airmass":null,"alt":-44.29,"az":338.5,"t":"2031-02-20T11:50:00Z","terrain":-0.61},{"above_terrain":false,"airmass":null,"alt":-44.62,"az":340.2,"t":"2031-02-20T11:55:00Z","terrain":-0.51},{"above_terrain":false,"airmass":null,"alt":-44.93,"az":341.9,"t":"2031-02-20T12:00:00Z","terrain":-0.49},{"above_terrain":false,"airmass":null,"alt":-45.2,"az":343.6,"t":"2031-02-20T12:05:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-45.45,"az":345.4,"t":"2031-02-20T12:10:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-45.68,"az":347.1,"t":"2031-02-20T12:15:00Z","terrain":-0.38},{"above_terrain":false,"airmass":null,"alt":-45.87,"az":348.9,"t":"2031-02-20T12:20:00Z","terrain":-0.01},{"above_terrain":false,"airmass":null,"alt":-46.04,"az":350.7,"t":"2031-02-20T12:25:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-46.17,"az":352.5,"t":"2031-02-20T12:30:00Z","terrain":0.39},{"above_terrain":false,"airmass":null,"alt":-46.28,"az":354.3,"t":"2031-02-20T12:35:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-46.36,"az":356.1,"t":"2031-02-20T12:40:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-46.41,"az":357.9,"t":"2031-02-20T12:45:00Z","terrain":0.63},{"above_terrain":false,"airmass":null,"alt":-46.43,"az":359.7,"t":"2031-02-20T12:50:00Z","terrain":0.53},{"above_terrain":false,"airmass":null,"alt":-46.42,"az":1.6,"t":"2031-02-20T12:55:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-46.38,"az":3.4,"t":"2031-02-20T13:00:00Z","terrain":-0.19},{"above_terrain":false,"airmass":null,"alt":-46.31,"az":5.2,"t":"2031-02-20T13:05:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-46.21,"az":7.0,"t":"2031-02-20T13:10:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-46.08,"az":8.8,"t":"2031-02-20T13:15:00Z","terrain":-0.61},{"above_terrain":false,"airmass":null,"alt":-45.92,"az":10.6,"t":"2031-02-20T13:20:00Z","terrain":-0.48},{"above_terrain":false,"airmass":null,"alt":-45.73,"az":12.4,"t":"2031-02-20T13:25:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-45.52,"az":14.1,"t":"2031-02-20T13:30:00Z","terrain":0.13},{"above_terrain":false,"airmass":null,"alt":-45.28,"az":15.9,"t":"2031-02-20T13:35:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-45.01,"az":17.6,"t":"2031-02-20T13:40:00Z","terrain":0.51},{"above_terrain":false,"airmass":null,"alt":-44.71,"az":19.3,"t":"2031-02-20T13:45:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-44.39,"az":21.0,"t":"2031-02-20T13:50:00Z","terrain":0.7},{"above_terrain":false,"airmass":null,"alt":-44.04,"az":22.7,"t":"2031-02-20T13:55:00Z","terrain":1.11},{"above_terrain":false,"airmass":null,"alt":-43.67,"az":24.4,"t":"2031-02-20T14:00:00Z","terrain":1.03},{"above_terrain":false,"airmass":null,"alt":-43.27,"az":26.0,"t":"2031-02-20T14:05:00Z","terrain":1.34},{"above_terrain":false,"airmass":null,"alt":-42.84,"az":27.6,"t":"2031-02-20T14:10:00Z","terrain":1.22},{"above_terrain":false,"airmass":null,"alt":-42.4,"az":29.2,"t":"2031-02-20T14:15:00Z","terrain":1.03},{"above_terrain":false,"airmass":null,"alt":-41.93,"az":30.8,"t":"2031-02-20T14:20:00Z","terrain":1.27},{"above_terrain":false,"airmass":null,"alt":-41.44,"az":32.3,"t":"2031-02-20T14:25:00Z","terrain":1.22},{"above_terrain":false,"airmass":null,"alt":-40.93,"az":33.8,"t":"2031-02-20T14:30:00Z","terrain":0.52},{"above_terrain":false,"airmass":null,"alt":-40.4,"az":35.3,"t":"2031-02-20T14:35:00Z","terrain":0.04},{"above_terrain":false,"airmass":null,"alt":-39.85,"az":36.8,"t":"2031-02-20T14:40:00Z","terrain":-0.07},{"above_terrain":false,"airmass":null,"alt":-39.28,"az":38.3,"t":"2031-02-20T14:45:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-38.69,"az":39.7,"t":"2031-02-20T14:50:00Z","terrain":-0.09},{"above_terrain":false,"airmass":null,"alt":-38.08,"az":41.1,"t":"2031-02-20T14:55:00Z","terrain":0.03},{"above_terrain":false,"airmass":null,"alt":-37.46,"az":42.4,"t":"2031-02-20T15:00:00Z","terrain":0.18},{"above_terrain":false,"airmass":null,"alt":-36.82,"az":43.8,"t":"2031-02-20T15:05:00Z","terrain":0.38},{"above_terrain":false,"airmass":null,"alt":-36.16,"az":45.1,"t":"2031-02-20T15:10:00Z","terrain":0.59},{"above_terrain":false,"airmass":null,"alt":-35.49,"az":46.4,"t":"2031-02-20T15:15:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-34.81,"az":47.7,"t":"2031-02-20T15:20:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-34.11,"az":49.0,"t":"2031-02-20T15:25:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-33.4,"az":50.2,"t":"2031-02-20T15:30:00Z","terrain":0.43},{"above_terrain":false,"airmass":null,"alt":-32.67,"az":51.4,"t":"2031-02-20T15:35:00Z","terrain":0.57},{"above_terrain":false,"airmass":null,"alt":-31.93,"az":52.6,"t":"2031-02-20T15:40:00Z","terrain":0.76},{"above_terrain":false,"airmass":null,"alt":-31.18,"az":53.8,"t":"2031-02-20T15:45:00Z","terrain":0.97},{"above_terrain":false,"airmass":null,"alt":-30.42,"az":55.0,"t":"2031-02-20T15:50:00Z","terrain":1.08},{"above_terrain":false,"airmass":null,"alt":-29.65,"az":56.1,"t":"2031-02-20T15:55:00Z","terrain":1.05},{"above_terrain":false,"airmass":null,"alt":-28.87,"az":57.2,"t":"2031-02-20T16:00:00Z","terrain":1.11},{"above_terrain":false,"airmass":null,"alt":-28.08,"az":58.3,"t":"2031-02-20T16:05:00Z","terrain":1.24},{"above_terrain":false,"airmass":null,"alt":-27.28,"az":59.4,"t":"2031-02-20T16:10:00Z","terrain":1.19},{"above_terrain":false,"airmass":null,"alt":-26.47,"az":60.5,"t":"2031-02-20T16:15:00Z","terrain":1.13},{"above_terrain":false,"airmass":null,"alt":-25.65,"az":61.5,"t":"2031-02-20T16:20:00Z","terrain":1.05},{"above_terrain":false,"airmass":null,"alt":-24.82,"az":62.6,"t":"2031-02-20T16:25:00Z","terrain":0.95},{"above_terrain":false,"airmass":null,"alt":-23.99,"az":63.6,"t":"2031-02-20T16:30:00Z","terrain":0.82},{"above_terrain":false,"airmass":null,"alt":-23.14,"az":64.6,"t":"2031-02-20T16:35:00Z","terrain":0.77},{"above_terrain":false,"airmass":null,"alt":-22.29,"az":65.6,"t":"2031-02-20T16:40:00Z","terrain":0.81},{"above_terrain":false,"airmass":null,"alt":-21.44,"az":66.6,"t":"2031-02-20T16:45:00Z","terrain":0.89},{"above_terrain":false,"airmass":null,"alt":-20.58,"az":67.6,"t":"2031-02-20T16:50:00Z","terrain":0.97},{"above_terrain":false,"airmass":null,"alt":-19.71,"az":68.5,"t":"2031-02-20T16:55:00Z","terrain":1.02},{"above_terrain":false,"airmass":null,"alt":-18.83,"az":69.5,"t":"2031-02-20T17:00:00Z","terrain":1.13},{"above_terrain":false,"airmass":null,"alt":-17.95,"az":70.4,"t":"2031-02-20T17:05:00Z","terrain":1.24},{"above_terrain":false,"airmass":null,"alt":-17.07,"az":71.4,"t":"2031-02-20T17:10:00Z","terrain":1.24},{"above_terrain":false,"airmass":null,"alt":-16.18,"az":72.3,"t":"2031-02-20T17:15:00Z","terrain":1.14},{"above_terrain":false,"airmass":null,"alt":-15.29,"az":73.2,"t":"2031-02-20T17:20:00Z","terrain":0.94},{"above_terrain":false,"airmass":null,"alt":-14.39,"az":74.1,"t":"2031-02-20T17:25:00Z","terrain":0.72},{"above_terrain":false,"airmass":null,"alt":-13.49,"az":75.0,"t":"2031-02-20T17:30:00Z","terrain":0.63},{"above_terrain":false,"airmass":null,"alt":-12.58,"az":75.9,"t":"2031-02-20T17:35:00Z","terrain":0.71},{"above_terrain":false,"airmass":null,"alt":-11.67,"az":76.8,"t":"2031-02-20T17:40:00Z","terrain":0.7},{"above_terrain":false,"airmass":null,"alt":-10.76,"az":77.6,"t":"2031-02-20T17:45:00Z","terrain":0.65},{"above_terrain":false,"airmass":null,"alt":-9.84,"az":78.5,"t":"2031-02-20T17:50:00Z","terrain":0.6},{"above_terrain":false,"airmass":null,"alt":-8.92,"az":79.4,"t":"2031-02-20T17:55:00Z","terrain":0.53},{"above_terrain":false,"airmass":null,"alt":-8.0,"az":80.2,"t":"2031-02-20T18:00:00Z","terrain":0.51},{"above_terrain":false,"airmass":null,"alt":-7.08,"az":81.1,"t":"2031-02-20T18:05:00Z","terrain":0.69},{"above_terrain":false,"airmass":null,"alt":-6.15,"az":81.9,"t":"2031-02-20T18:10:00Z","terrain":0.79},{"above_terrain":false,"airmass":null,"alt":-5.23,"az":82.8,"t":"2031-02-20T18:15:00Z","terrain":0.54},{"above_terrain":false,"airmass":null,"alt":-4.3,"az":83.6,"t":"2031-02-20T18:20:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-3.37,"az":84.5,"t":"2031-02-20T18:25:00Z","terrain":0.34},{"above_terrain":false,"airmass":null,"alt":-2.43,"az":85.3,"t":"2031-02-20T18:30:00Z","terrain":0.26},{"above_terrain":false,"airmass":null,"alt":-1.5,"az":86.1,"t":"2031-02-20T18:35:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-0.57,"az":87.0,"t":"2031-02-20T18:40:00Z","terrain":0.07},{"above_terrain":true,"airmass":32.91,"alt":0.37,"az":87.8,"t":"2031-02-20T18:45:00Z","terrain":-0.04},{"above_terrain":true,"airmass":23.84,"alt":1.3,"az":88.6,"t":"2031-02-20T18:50:00Z","terrain":-0.15},{"above_terrain":true,"airmass":18.22,"alt":2.24,"az":89.5,"t":"2031-02-20T18:55:00Z","terrain":-0.21},{"above_terrain":true,"airmass":14.56,"alt":3.18,"az":90.3,"t":"2031-02-20T19:00:00Z","terrain":-0.18},{"above_terrain":true,"airmass":12.04,"alt":4.11,"az":91.1,"t":"2031-02-20T19:05:00Z","terrain":-0.06},{"above_terrain":true,"airmass":10.23,"alt":5.05,"az":92.0,"t":"2031-02-20T19:10:00Z","terrain":0.1},{"above_terrain":true,"airmass":8.86,"alt":5.98,"az":92.8,"t":"2031-02-20T19:15:00Z","terrain":0.29},{"above_terrain":true,"airmass":7.81,"alt":6.92,"az":93.7,"t":"2031-02-20T19:20:00Z","terrain":0.38},{"above_terrain":true,"airmass":6.97,"alt":7.85,"az":94.5,"t":"2031-02-20T19:25:00Z","terrain":0.4},{"above_terrain":true,"airmass":6.3,"alt":8.78,"az":95.3,"t":"2031-02-20T19:30:00Z","terrain":0.44},{"above_terrain":true,"airmass":5.74,"alt":9.71,"az":96.2,"t":"2031-02-20T19:35:00Z","terrain":0.58},{"above_terrain":true,"airmass":5.27,"alt":10.64,"az":97.0,"t":"2031-02-20T19:40:00Z","terrain":0.73},{"above_terrain":true,"airmass":4.87,"alt":11.57,"az":97.9,"t":"2031-02-20T19:45:00Z","terrain":0.68},{"above_terrain":true,"airmass":4.53,"alt":12.5,"az":98.8,"t":"2031-02-20T19:50:00Z","terrain":0.53},{"above_terrain":true,"airmass":4.24,"alt":13.42,"az":99.6,"t":"2031-02-20T19:55:00Z","terrain":0.35},{"above_terrain":true,"airmass":3.98,"alt":14.34,"az":100.5,"t":"2031-02-20T20:00:00Z","terrain":0.17},{"above_terrain":true,"airmass":3.75,"alt":15.26,"az":101.4,"t":"2031-02-20T20:05:00Z","terrain":0.03},{"above_terrain":true,"airmass":3.55,"alt":16.18,"az":102.3,"t":"2031-02-20T20:10:00Z","terrain":-0.09},{"above_terrain":true,"airmass":3.37,"alt":17.09,"az":103.2,"t":"2031-02-20T20:15:00Z","terrain":-0.18},{"above_terrain":true,"airmass":3.21,"alt":18.0,"az":104.1,"t":"2031-02-20T20:20:00Z","terrain":-0.01},{"above_terrain":true,"airmass":3.06,"alt":18.91,"az":105.0,"t":"2031-02-20T20:25:00Z","terrain":-0.21},{"above_terrain":true,"airmass":2.93,"alt":19.81,"az":105.9,"t":"2031-02-20T20:30:00Z","terrain":-0.6},{"above_terrain":true,"airmass":2.81,"alt":20.71,"az":106.8,"t":"2031-02-20T20:35:00Z","terrain":-0.61},{"above_terrain":true,"airmass":2.7,"alt":21.6,"az":107.8,"t":"2031-02-20T20:40:00Z","terrain":-0.86},{"above_terrain":true,"airmass":2.6,"alt":22.49,"az":108.7,"t":"2031-02-20T20:45:00Z","terrain":-1.12},{"above_terrain":true,"airmass":2.51,"alt":23.37,"az":109.7,"t":"2031-02-20T20:50:00Z","terrain":-1.16},{"above_terrain":true,"airmass":2.42,"alt":24.25,"az":110.7,"t":"2031-02-20T20:55:00Z","terrain":-1.27},{"above_terrain":true,"airmass":2.35,"alt":25.12,"az":111.7,"t":"2031-02-20T21:00:00Z","terrain":-1.36},{"above_terrain":true,"airmass":2.27,"alt":25.99,"az":112.7,"t":"2031-02-20T21:05:00Z","terrain":-1.42},{"above_terrain":true,"airmass":2.21,"alt":26.85,"az":113.7,"t":"2031-02-20T21:10:00Z","terrain":-1.56},{"above_terrain":true,"airmass":2.14,"alt":27.71,"az":114.7,"t":"2031-02-20T21:15:00Z","terrain":-1.54},{"above_terrain":true,"airmass":2.09,"alt":28.55,"az":115.8,"t":"2031-02-20T21:20:00Z","terrain":-1.48},{"above_terrain":true,"airmass":2.03,"alt":29.39,"az":116.8,"t":"2031-02-20T21:25:00Z","terrain":-1.6},{"above_terrain":true,"airmass":1.98,"alt":30.22,"az":117.9,"t":"2031-02-20T21:30:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.93,"alt":31.05,"az":119.0,"t":"2031-02-20T21:35:00Z","terrain":-1.48},{"above_terrain":true,"airmass":1.89,"alt":31.86,"az":120.1,"t":"2031-02-20T21:40:00Z","terrain":-1.24},{"above_terrain":true,"airmass":1.85,"alt":32.66,"az":121.3,"t":"2031-02-20T21:45:00Z","terrain":-1.23},{"above_terrain":true,"airmass":1.81,"alt":33.46,"az":122.4,"t":"2031-02-20T21:50:00Z","terrain":-1.27},{"above_terrain":true,"airmass":1.77,"alt":34.24,"az":123.6,"t":"2031-02-20T21:55:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.74,"alt":35.02,"az":124.8,"t":"2031-02-20T22:00:00Z","terrain":-1.61},{"above_terrain":true,"airmass":1.71,"alt":35.78,"az":126.0,"t":"2031-02-20T22:05:00Z","terrain":-1.6},{"above_terrain":true,"airmass":1.68,"alt":36.53,"az":127.2,"t":"2031-02-20T22:10:00Z","terrain":-1.51},{"above_terrain":true,"airmass":1.65,"alt":37.27,"az":128.5,"t":"2031-02-20T22:15:00Z","terrain":-1.27},{"above_terrain":true,"airmass":1.62,"alt":38.0,"az":129.8,"t":"2031-02-20T22:20:00Z","terrain":-1.47},{"above_terrain":true,"airmass":1.6,"alt":38.71,"az":131.1,"t":"2031-02-20T22:25:00Z","terrain":-1.68},{"above_terrain":true,"airmass":1.57,"alt":39.41,"az":132.5,"t":"2031-02-20T22:30:00Z","terrain":-1.65},{"above_terrain":true,"airmass":1.55,"alt":40.09,"az":133.8,"t":"2031-02-20T22:35:00Z","terrain":-1.56},{"above_terrain":true,"airmass":1.53,"alt":40.76,"az":135.2,"t":"2031-02-20T22:40:00Z","terrain":-1.28},{"above_terrain":true,"airmass":1.51,"alt":41.41,"az":136.6,"t":"2031-02-20T22:45:00Z","terrain":-1.22},{"above_terrain":true,"airmass":1.49,"alt":42.04,"az":138.1,"t":"2031-02-20T22:50:00Z","terrain":-1.16},{"above_terrain":true,"airmass":1.47,"alt":42.66,"az":139.6,"t":"2031-02-20T22:55:00Z","terrain":-1.33},{"above_terrain":true,"airmass":1.46,"alt":43.26,"az":141.1,"t":"2031-02-20T23:00:00Z","terrain":-1.11},{"above_terrain":true,"airmass":1.44,"alt":43.84,"az":142.6,"t":"2031-02-20T23:05:00Z","terrain":-1.35},{"above_terrain":true,"airmass":1.43,"alt":44.39,"az":144.2,"t":"2031-02-20T23:10:00Z","terrain":-1.35},{"above_terrain":true,"airmass":1.41,"alt":44.93,"az":145.7,"t":"2031-02-20T23:15:00Z","terrain":-1.5},{"above_terrain":true,"airmass":1.4,"alt":45.45,"az":147.4,"t":"2031-02-20T23:20:00Z","terrain":-1.35},{"above_terrain":true,"airmass":1.39,"alt":45.94,"az":149.0,"t":"2031-02-20T23:25:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.38,"alt":46.41,"az":150.7,"t":"2031-02-20T23:30:00Z","terrain":-1.21},{"above_terrain":true,"airmass":1.37,"alt":46.86,"az":152.4,"t":"2031-02-20T23:35:00Z","terrain":-1.13},{"above_terrain":true,"airmass":1.36,"alt":47.28,"az":154.1,"t":"2031-02-20T23:40:00Z","terrain":-1.05},{"above_terrain":true,"airmass":1.35,"alt":47.67,"az":155.9,"t":"2031-02-20T23:45:00Z","terrain":-1.23},{"above_terrain":true,"airmass":1.34,"alt":48.04,"az":157.7,"t":"2031-02-20T23:50:00Z","terrain":-1.06},{"above_terrain":true,"airmass":1.34,"alt":48.38,"az":159.5,"t":"2031-02-20T23:55:00Z","terrain":-1.13},{"above_terrain":true,"airmass":1.33,"alt":48.7,"az":161.3,"t":"2031-02-21T00:00:00Z","terrain":-1.23},{"above_terrain":true,"airmass":1.32,"alt":48.98,"az":163.2,"t":"2031-02-21T00:05:00Z","terrain":-1.39},{"above_terrain":true,"airmass":1.32,"alt":49.24,"az":165.0,"t":"2031-02-21T00:10:00Z","terrain":-1.38},{"above_terrain":true,"airmass":1.31,"alt":49.47,"az":166.9,"t":"2031-02-21T00:15:00Z","terrain":-1.17},{"above_terrain":true,"airmass":1.31,"alt":49.66,"az":168.8,"t":"2031-02-21T00:20:00Z","terrain":-0.84},{"above_terrain":true,"airmass":1.31,"alt":49.83,"az":170.8,"t":"2031-02-21T00:25:00Z","terrain":-0.64},{"above_terrain":true,"airmass":1.3,"alt":49.96,"az":172.7,"t":"2031-02-21T00:30:00Z","terrain":-0.54},{"above_terrain":true,"airmass":1.3,"alt":50.07,"az":174.6,"t":"2031-02-21T00:35:00Z","terrain":-0.43},{"above_terrain":true,"airmass":1.3,"alt":50.14,"az":176.6,"t":"2031-02-21T00:40:00Z","terrain":-0.39},{"above_terrain":true,"airmass":1.3,"alt":50.18,"az":178.5,"t":"2031-02-21T00:45:00Z","terrain":-0.41},{"above_terrain":true,"airmass":1.3,"alt":50.19,"az":180.5,"t":"2031-02-21T00:50:00Z","terrain":-0.58},{"above_terrain":true,"airmass":1.3,"alt":50.16,"az":182.5,"t":"2031-02-21T00:55:00Z","terrain":-0.65},{"above_terrain":true,"airmass":1.3,"alt":50.11,"az":184.4,"t":"2031-02-21T01:00:00Z","terrain":-0.6},{"above_terrain":true,"airmass":1.3,"alt":50.02,"az":186.4,"t":"2031-02-21T01:05:00Z","terrain":-0.69},{"above_terrain":true,"airmass":1.31,"alt":49.9,"az":188.3,"t":"2031-02-21T01:10:00Z","terrain":-0.64},{"above_terrain":true,"airmass":1.31,"alt":49.75,"az":190.2,"t":"2031-02-21T01:15:00Z","terrain":-0.54},{"above_terrain":true,"airmass":1.31,"alt":49.57,"az":192.1,"t":"2031-02-21T01:20:00Z","terrain":-0.41},{"above_terrain":true,"airmass":1.32,"alt":49.36,"az":194.0,"t":"2031-02-21T01:25:00Z","terrain":-0.49},{"above_terrain":true,"airmass":1.32,"alt":49.11,"az":195.9,"t":"2031-02-21T01:30:00Z","terrain":-0.63},{"above_terrain":true,"airmass":1.33,"alt":48.84,"az":197.8,"t":"2031-02-21T01:35:00Z","terrain":-0.38},{"above_terrain":true,"airmass":1.33,"alt":48.54,"az":199.6,"t":"2031-02-21T01:40:00Z","terrain":-0.28},{"above_terrain":true,"airmass":1.34,"alt":48.21,"az":201.4,"t":"2031-02-21T01:45:00Z","terrain":-0.51},{"above_terrain":true,"airmass":1.35,"alt":47.86,"az":203.2,"t":"2031-02-21T01:50:00Z","terrain":-0.62},{"above_terrain":true,"airmass":1.36,"alt":47.48,"az":205.0,"t":"2031-02-21T01:55:00Z","terrain":-0.18},{"above_terrain":true,"airmass":1.36,"alt":47.07,"az":206.8,"t":"2031-02-21T02:00:00Z","terrain":0.2},{"above_terrain":true,"airmass":1.37,"alt":46.63,"az":208.5,"t":"2031-02-21T02:05:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.38,"alt":46.18,"az":210.2,"t":"2031-02-21T02:10:00Z","terrain":0.68},{"above_terrain":true,"airmass":1.4,"alt":45.69,"az":211.8,"t":"2031-02-21T02:15:00Z","terrain":0.47},{"above_terrain":true,"airmass":1.41,"alt":45.19,"az":213.5,"t":"2031-02-21T02:20:00Z","terrain":0.58},{"above_terrain":true,"airmass":1.42,"alt":44.66,"az":215.1,"t":"2031-02-21T02:25:00Z","terrain":0.64},{"above_terrain":true,"airmass":1.43,"alt":44.11,"az":216.6,"t":"2031-02-21T02:30:00Z","terrain":0.89},{"above_terrain":true,"airmass":1.45,"alt":43.54,"az":218.2,"t":"2031-02-21T02:35:00Z","terrain":1.26},{"above_terrain":true,"airmass":1.47,"alt":42.96,"az":219.7,"t":"2031-02-21T02:40:00Z","terrain":1.22},{"above_terrain":true,"airmass":1.48,"alt":42.35,"az":221.2,"t":"2031-02-21T02:45:00Z","terrain":1.12},{"above_terrain":true,"airmass":1.5,"alt":41.72,"az":222.7,"t":"2031-02-21T02:50:00Z","terrain":0.85},{"above_terrain":true,"airmass":1.52,"alt":41.08,"az":224.1,"t":"2031-02-21T02:55:00Z","terrain":0.31},{"above_terrain":true,"airmass":1.54,"alt":40.42,"az":225.5,"t":"2031-02-21T03:00:00Z","terrain":0.49},{"above_terrain":true,"airmass":1.56,"alt":39.75,"az":226.9,"t":"2031-02-21T03:05:00Z","terrain":0.94},{"above_terrain":true,"airmass":1.58,"alt":39.05,"az":228.2,"t":"2031-02-21T03:10:00Z","terrain":1.17},{"above_terrain":true,"airmass":1.61,"alt":38.35,"az":229.6,"t":"2031-02-21T03:15:00Z","terrain":1.22},{"above_terrain":true,"airmass":1.64,"alt":37.63,"az":230.9,"t":"2031-02-21T03:20:00Z","terrain":0.92},{"above_terrain":true,"airmass":1.66,"alt":36.9,"az":232.1,"t":"2031-02-21T03:25:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.69,"alt":36.15,"az":233.4,"t":"2031-02-21T03:30:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.72,"alt":35.4,"az":234.6,"t":"2031-02-21T03:35:00Z","terrain":0.92},{"above_terrain":true,"airmass":1.76,"alt":34.63,"az":235.8,"t":"2031-02-21T03:40:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.79,"alt":33.85,"az":237.0,"t":"2031-02-21T03:45:00Z","terrain":0.83},{"above_terrain":true,"airmass":1.83,"alt":33.06,"az":238.2,"t":"2031-02-21T03:50:00Z","terrain":0.75},{"above_terrain":true,"airmass":1.87,"alt":32.26,"az":239.3,"t":"2031-02-21T03:55:00Z","terrain":0.6},{"above_terrain":true,"airmass":1.91,"alt":31.45,"az":240.4,"t":"2031-02-21T04:00:00Z","terrain":0.78},{"above_terrain":true,"airmass":1.96,"alt":30.63,"az":241.6,"t":"2031-02-21T04:05:00Z","terrain":0.91},{"above_terrain":true,"airmass":2.01,"alt":29.8,"az":242.6,"t":"2031-02-21T04:10:00Z","terrain":1.02},{"above_terrain":true,"airmass":2.06,"alt":28.97,"az":243.7,"t":"2031-02-21T04:15:00Z","terrain":0.96},{"above_terrain":true,"airmass":2.11,"alt":28.12,"az":244.8,"t":"2031-02-21T04:20:00Z","terrain":0.98},{"above_terrain":true,"airmass":2.17,"alt":27.27,"az":245.8,"t":"2031-02-21T04:25:00Z","terrain":1.14},{"above_terrain":true,"airmass":2.24,"alt":26.42,"az":246.8,"t":"2031-02-21T04:30:00Z","terrain":1.05},{"above_terrain":true,"airmass":2.31,"alt":25.55,"az":247.8,"t":"2031-02-21T04:35:00Z","terrain":0.65},{"above_terrain":true,"airmass":2.38,"alt":24.68,"az":248.8,"t":"2031-02-21T04:40:00Z","terrain":0.5},{"above_terrain":true,"airmass":2.47,"alt":23.81,"az":249.8,"t":"2031-02-21T04:45:00Z","terrain":0.57},{"above_terrain":true,"airmass":2.55,"alt":22.93,"az":250.8,"t":"2031-02-21T04:50:00Z","terrain":0.56},{"above_terrain":true,"airmass":2.65,"alt":22.04,"az":251.7,"t":"2031-02-21T04:55:00Z","terrain":0.3},{"above_terrain":true,"airmass":2.75,"alt":21.15,"az":252.7,"t":"2031-02-21T05:00:00Z","terrain":0.18},{"above_terrain":true,"airmass":2.87,"alt":20.25,"az":253.6,"t":"2031-02-21T05:05:00Z","terrain":0.17},{"above_terrain":true,"airmass":2.99,"alt":19.35,"az":254.6,"t":"2031-02-21T05:10:00Z","terrain":0.21},{"above_terrain":true,"airmass":3.13,"alt":18.45,"az":255.5,"t":"2031-02-21T05:15:00Z","terrain":0.31},{"above_terrain":true,"airmass":3.29,"alt":17.54,"az":256.4,"t":"2031-02-21T05:20:00Z","terrain":0.41},{"above_terrain":true,"airmass":3.46,"alt":16.63,"az":257.3,"t":"2031-02-21T05:25:00Z","terrain":0.41},{"above_terrain":true,"airmass":3.65,"alt":15.71,"az":258.2,"t":"2031-02-21T05:30:00Z","terrain":0.38},{"above_terrain":true,"airmass":3.86,"alt":14.8,"az":259.1,"t":"2031-02-21T05:35:00Z","terrain":0.48},{"above_terrain":true,"airmass":4.11,"alt":13.88,"az":259.9,"t":"2031-02-21T05:40:00Z","terrain":0.55},{"above_terrain":true,"airmass":4.38,"alt":12.95,"az":260.8,"t":"2031-02-21T05:45:00Z","terrain":0.79},{"above_terrain":true,"airmass":4.7,"alt":12.03,"az":261.7,"t":"2031-02-21T05:50:00Z","terrain":0.93},{"above_terrain":true,"airmass":5.07,"alt":11.1,"az":262.5,"t":"2031-02-21T05:55:00Z","terrain":0.89},{"above_terrain":true,"airmass":5.5,"alt":10.17,"az":263.4,"t":"2031-02-21T06:00:00Z","terrain":0.7},{"above_terrain":true,"airmass":6.01,"alt":9.24,"az":264.2,"t":"2031-02-21T06:05:00Z","terrain":0.49},{"above_terrain":true,"airmass":6.62,"alt":8.31,"az":265.1,"t":"2031-02-21T06:10:00Z","terrain":0.4},{"above_terrain":true,"airmass":7.38,"alt":7.38,"az":265.9,"t":"2031-02-21T06:15:00Z","terrain":0.46},{"above_terrain":true,"airmass":8.31,"alt":6.44,"az":266.8,"t":"2031-02-21T06:20:00Z","terrain":0.55},{"above_terrain":true,"airmass":9.51,"alt":5.51,"az":267.6,"t":"2031-02-21T06:25:00Z","terrain":0.62},{"above_terrain":true,"airmass":11.08,"alt":4.57,"az":268.4,"t":"2031-02-21T06:30:00Z","terrain":0.69},{"above_terrain":true,"airmass":13.21,"alt":3.64,"az":269.3,"t":"2031-02-21T06:35:00Z","terrain":0.79},{"above_terrain":true,"airmass":16.24,"alt":2.7,"az":270.1,"t":"2031-02-21T06:40:00Z","terrain":0.89},{"above_terrain":true,"airmass":20.76,"alt":1.77,"az":270.9,"t":"2031-02-21T06:45:00Z","terrain":0.79},{"above_terrain":true,"airmass":27.88,"alt":0.83,"az":271.8,"t":"2031-02-21T06:50:00Z","terrain":0.5},{"above_terrain":false,"airmass":null,"alt":-0.11,"az":272.6,"t":"2031-02-21T06:55:00Z","terrain":0.25},{"above_terrain":false,"airmass":null,"alt":-1.04,"az":273.4,"t":"2031-02-21T07:00:00Z","terrain":0.06},{"above_terrain":false,"airmass":null,"alt":-1.97,"az":274.3,"t":"2031-02-21T07:05:00Z","terrain":0.0},{"above_terrain":false,"airmass":null,"alt":-2.91,"az":275.1,"t":"2031-02-21T07:10:00Z","terrain":0.08},{"above_terrain":false,"airmass":null,"alt":-3.84,"az":276.0,"t":"2031-02-21T07:15:00Z","terrain":-0.01},{"above_terrain":false,"airmass":null,"alt":-4.77,"az":276.8,"t":"2031-02-21T07:20:00Z","terrain":-0.11},{"above_terrain":false,"airmass":null,"alt":-5.7,"az":277.6,"t":"2031-02-21T07:25:00Z","terrain":-0.1},{"above_terrain":false,"airmass":null,"alt":-6.62,"az":278.5,"t":"2031-02-21T07:30:00Z","terrain":-0.05},{"above_terrain":false,"airmass":null,"alt":-7.55,"az":279.3,"t":"2031-02-21T07:35:00Z","terrain":-0.06},{"above_terrain":false,"airmass":null,"alt":-8.47,"az":280.2,"t":"2031-02-21T07:40:00Z","terrain":-0.1},{"above_terrain":false,"airmass":null,"alt":-9.39,"az":281.1,"t":"2031-02-21T07:45:00Z","terrain":0.02},{"above_terrain":false,"airmass":null,"alt":-10.31,"az":281.9,"t":"2031-02-21T07:50:00Z","terrain":-0.12},{"above_terrain":false,"airmass":null,"alt":-11.22,"az":282.8,"t":"2031-02-21T07:55:00Z","terrain":-0.03},{"above_terrain":false,"airmass":null,"alt":-12.13,"az":283.7,"t":"2031-02-21T08:00:00Z","terrain":0.08},{"above_terrain":false,"airmass":null,"alt":-13.04,"az":284.6,"t":"2031-02-21T08:05:00Z","terrain":0.18},{"above_terrain":false,"airmass":null,"alt":-13.95,"az":285.5,"t":"2031-02-21T08:10:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-14.85,"az":286.4,"t":"2031-02-21T08:15:00Z","terrain":0.27},{"above_terrain":false,"airmass":null,"alt":-15.74,"az":287.3,"t":"2031-02-21T08:20:00Z","terrain":0.32},{"above_terrain":false,"airmass":null,"alt":-16.63,"az":288.2,"t":"2031-02-21T08:25:00Z","terrain":0.17},{"above_terrain":false,"airmass":null,"alt":-17.52,"az":289.1,"t":"2031-02-21T08:30:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-18.4,"az":290.0,"t":"2031-02-21T08:35:00Z","terrain":0.3},{"above_terrain":false,"airmass":null,"alt":-19.28,"az":291.0,"t":"2031-02-21T08:40:00Z","terrain":0.49},{"above_terrain":false,"airmass":null,"alt":-20.15,"az":291.9,"t":"2031-02-21T08:45:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-21.01,"az":292.9,"t":"2031-02-21T08:50:00Z","terrain":0.3},{"above_terrain":false,"airmass":null,"alt":-21.87,"az":293.9,"t":"2031-02-21T08:55:00Z","terrain":0.25},{"above_terrain":false,"airmass":null,"alt":-22.73,"az":294.9,"t":"2031-02-21T09:00:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-23.57,"az":295.9,"t":"2031-02-21T09:05:00Z","terrain":0.32},{"above_terrain":false,"airmass":null,"alt":-24.41,"az":296.9,"t":"2031-02-21T09:10:00Z","terrain":0.27},{"above_terrain":false,"airmass":null,"alt":-25.24,"az":297.9,"t":"2031-02-21T09:15:00Z","terrain":0.13},{"above_terrain":false,"airmass":null,"alt":-26.06,"az":299.0,"t":"2031-02-21T09:20:00Z","terrain":0.17},{"above_terrain":false,"airmass":null,"alt":-26.88,"az":300.0,"t":"2031-02-21T09:25:00Z","terrain":0.37},{"above_terrain":false,"airmass":null,"alt":-27.68,"az":301.1,"t":"2031-02-21T09:30:00Z","terrain":0.29},{"above_terrain":false,"airmass":null,"alt":-28.48,"az":302.2,"t":"2031-02-21T09:35:00Z","terrain":0.01},{"above_terrain":false,"airmass":null,"alt":-29.27,"az":303.3,"t":"2031-02-21T09:40:00Z","terrain":-0.19},{"above_terrain":false,"airmass":null,"alt":-30.04,"az":304.5,"t":"2031-02-21T09:45:00Z","terrain":-0.19},{"above_terrain":false,"airmass":null,"alt":-30.81,"az":305.6,"t":"2031-02-21T09:50:00Z","terrain":-0.22},{"above_terrain":false,"airmass":null,"alt":-31.57,"az":306.8,"t":"2031-02-21T09:55:00Z","terrain":0.11},{"above_terrain":false,"airmass":null,"alt":-32.31,"az":308.0,"t":"2031-02-21T10:00:00Z","terrain":0.32}],"transit":{"airmass":1.3,"alt":50.2,"az":180.5,"t":"2031-02-21T00:50:00Z"},"usable_hours":7.08,"verdict":"good","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."]}