{"assessment":{"best_window":{"end":"2037-05-18T22:55Z","end_local":"01:55","hours":3.25,"label":"good","mean_quality":0.84,"start":"2037-05-18T19:40Z","start_local":"22:40"},"cost":{"altitude":2.86,"clouds":0.0,"darkness":1.45,"moon":0.05},"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":48,"cloud":null,"high":null,"iso":"2037-05-18T18:00Z","label":"unusable","low":null,"mid":null,"moon_alt":28,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"21:00","wind":null},{"alt":50,"cloud":null,"high":null,"iso":"2037-05-18T19:00Z","label":"marginal","low":null,"mid":null,"moon_alt":18,"precip":null,"q":0.45,"rh":null,"sky":"astronomical twilight","temp":null,"time":"22:00","wind":null},{"alt":48,"cloud":null,"high":null,"iso":"2037-05-18T20:00Z","label":"good","low":null,"mid":null,"moon_alt":7,"precip":null,"q":0.89,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":42,"cloud":null,"high":null,"iso":"2037-05-18T21:00Z","label":"good","low":null,"mid":null,"moon_alt":-3,"precip":null,"q":0.88,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":34,"cloud":null,"high":null,"iso":"2037-05-18T22:00Z","label":"good","low":null,"mid":null,"moon_alt":-11,"precip":null,"q":0.83,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":24,"cloud":null,"high":null,"iso":"2037-05-18T23:00Z","label":"marginal","low":null,"mid":null,"moon_alt":-19,"precip":null,"q":0.56,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":13,"cloud":null,"high":null,"iso":"2037-05-19T00:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-24,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":2,"cloud":null,"high":null,"iso":"2037-05-19T01:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-27,"precip":null,"q":0.0,"rh":null,"sky":"astronomical twilight","temp":null,"time":"04:00","wind":null},{"alt":-9,"cloud":null,"high":null,"iso":"2037-05-19T02:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-28,"precip":null,"q":0.0,"rh":null,"sky":"nautical twilight","temp":null,"time":"05:00","wind":null}],"peak_quality":0.89,"peak_sky":0.89,"quality_hours":3.45,"reasons":["the target being low or below 20\u00b0 cost 2.9 quality-hours","daylight and twilight cost 1.4 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":77,"score_weather":null,"sky_hours":3.45,"verdict":"unknown","verdict_astronomy":"good","weather_known":false,"windows":[{"end":"2037-05-18T18:10Z","end_local":"21:10","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2037-05-18T17:35Z","start_local":"20:35"},{"end":"2037-05-18T18:50Z","end_local":"21:50","hours":0.67,"label":"poor","mean_quality":0.13,"start":"2037-05-18T18:10Z","start_local":"21:10"},{"end":"2037-05-18T19:40Z","end_local":"22:40","hours":0.83,"label":"marginal","mean_quality":0.45,"start":"2037-05-18T18:50Z","start_local":"21:50"},{"end":"2037-05-18T22:55Z","end_local":"01:55","hours":3.25,"label":"good","mean_quality":0.84,"start":"2037-05-18T19:40Z","start_local":"22:40"},{"end":"2037-05-18T23:25Z","end_local":"02:25","hours":0.5,"label":"marginal","mean_quality":0.51,"start":"2037-05-18T22:55Z","start_local":"01:55"},{"end":"2037-05-19T03:00Z","end_local":"06:00","hours":3.58,"label":"unusable","mean_quality":0.0,"start":"2037-05-18T23:25Z","start_local":"02:25"}]},"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":"2037-05-18T19:35:14Z","dark_hours":5.4,"dark_to":"2037-05-19T00:59:28Z","moon":{"illumination":0.149,"phase":"waxing crescent","waxing":true},"moon_free_dark_hours":4.25,"moonrise":"2037-05-19T06:37:15Z","moonset":"2037-05-18T20:43:09Z","sunrise":"2037-05-19T02:57:36Z","sunset":"2037-05-18T17:37:05Z","twilight":{"astronomical":{"end":"2037-05-18T19:35:14Z","start":"2037-05-19T00:59:28Z"},"civil":{"end":"2037-05-18T18:09:14Z","start":"2037-05-19T02:25:28Z"},"nautical":{"end":"2037-05-18T18:49:30Z","start":"2037-05-19T01:45:12Z"}},"window_end":"2037-05-19T09:00:00Z","window_start":"2037-05-18T09:00:00Z"},"night_date":"2037-05-18","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":1.32,"alt":49.4,"t":"2037-05-18T19:40:00Z"},"dec":2.05238823,"dec_of_date":1.8461,"dec_str":"+02\u00b0 03' 08.6\"","good_hours":2.75,"limit_rise":"2037-05-18T14:47:17Z","limit_set":"2037-05-18T23:22:21Z","max_az_rate_deg_per_min":0.0,"moon_separation":82.3,"never_rises":false,"ra":187.27791594,"ra_of_date":187.7559,"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":"Only 2.8 h above 30\u00b0, 3.8 h above 20\u00b0 \u2014 usable, at high airmass.","terrain":{"available":true,"behind_at":"2037-05-19T01:08:16Z","blocked_dark_hours":0,"clears_at":"2037-05-18T12:59:13Z","rise_az":87.7},"track":[{"above_terrain":false,"airmass":null,"alt":-39.44,"az":38.0,"t":"2037-05-18T09:00:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-38.85,"az":39.4,"t":"2037-05-18T09:05:00Z","terrain":-0.12},{"above_terrain":false,"airmass":null,"alt":-38.25,"az":40.8,"t":"2037-05-18T09:10:00Z","terrain":0.01},{"above_terrain":false,"airmass":null,"alt":-37.63,"az":42.2,"t":"2037-05-18T09:15:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-36.99,"az":43.5,"t":"2037-05-18T09:20:00Z","terrain":0.33},{"above_terrain":false,"airmass":null,"alt":-36.34,"az":44.9,"t":"2037-05-18T09:25:00Z","terrain":0.56},{"above_terrain":false,"airmass":null,"alt":-35.67,"az":46.2,"t":"2037-05-18T09:30:00Z","terrain":0.66},{"above_terrain":false,"airmass":null,"alt":-34.99,"az":47.5,"t":"2037-05-18T09:35:00Z","terrain":0.57},{"above_terrain":false,"airmass":null,"alt":-34.29,"az":48.7,"t":"2037-05-18T09:40:00Z","terrain":0.44},{"above_terrain":false,"airmass":null,"alt":-33.58,"az":50.0,"t":"2037-05-18T09:45:00Z","terrain":0.4},{"above_terrain":false,"airmass":null,"alt":-32.86,"az":51.2,"t":"2037-05-18T09:50:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-32.12,"az":52.4,"t":"2037-05-18T09:55:00Z","terrain":0.71},{"above_terrain":false,"airmass":null,"alt":-31.38,"az":53.6,"t":"2037-05-18T10:00:00Z","terrain":0.93},{"above_terrain":false,"airmass":null,"alt":-30.62,"az":54.7,"t":"2037-05-18T10:05:00Z","terrain":1.06},{"above_terrain":false,"airmass":null,"alt":-29.85,"az":55.9,"t":"2037-05-18T10:10:00Z","terrain":1.05},{"above_terrain":false,"airmass":null,"alt":-29.07,"az":57.0,"t":"2037-05-18T10:15:00Z","terrain":1.07},{"above_terrain":false,"airmass":null,"alt":-28.28,"az":58.1,"t":"2037-05-18T10:20:00Z","terrain":1.25},{"above_terrain":false,"airmass":null,"alt":-27.48,"az":59.2,"t":"2037-05-18T10:25:00Z","terrain":1.2},{"above_terrain":false,"airmass":null,"alt":-26.67,"az":60.3,"t":"2037-05-18T10:30:00Z","terrain":1.15},{"above_terrain":false,"airmass":null,"alt":-25.85,"az":61.3,"t":"2037-05-18T10:35:00Z","terrain":1.06},{"above_terrain":false,"airmass":null,"alt":-25.03,"az":62.4,"t":"2037-05-18T10:40:00Z","terrain":0.97},{"above_terrain":false,"airmass":null,"alt":-24.2,"az":63.4,"t":"2037-05-18T10:45:00Z","terrain":0.85},{"above_terrain":false,"airmass":null,"alt":-23.35,"az":64.4,"t":"2037-05-18T10:50:00Z","terrain":0.77},{"above_terrain":false,"airmass":null,"alt":-22.51,"az":65.4,"t":"2037-05-18T10:55:00Z","terrain":0.8},{"above_terrain":false,"airmass":null,"alt":-21.65,"az":66.4,"t":"2037-05-18T11:00:00Z","terrain":0.87},{"above_terrain":false,"airmass":null,"alt":-20.79,"az":67.4,"t":"2037-05-18T11:05:00Z","terrain":0.95},{"above_terrain":false,"airmass":null,"alt":-19.92,"az":68.4,"t":"2037-05-18T11:10:00Z","terrain":1.01},{"above_terrain":false,"airmass":null,"alt":-19.05,"az":69.3,"t":"2037-05-18T11:15:00Z","terrain":1.1},{"above_terrain":false,"airmass":null,"alt":-18.17,"az":70.3,"t":"2037-05-18T11:20:00Z","terrain":1.23},{"above_terrain":false,"airmass":null,"alt":-17.29,"az":71.2,"t":"2037-05-18T11:25:00Z","terrain":1.25},{"above_terrain":false,"airmass":null,"alt":-16.4,"az":72.1,"t":"2037-05-18T11:30:00Z","terrain":1.18},{"above_terrain":false,"airmass":null,"alt":-15.51,"az":73.0,"t":"2037-05-18T11:35:00Z","terrain":0.98},{"above_terrain":false,"airmass":null,"alt":-14.61,"az":73.9,"t":"2037-05-18T11:40:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-13.71,"az":74.8,"t":"2037-05-18T11:45:00Z","terrain":0.65},{"above_terrain":false,"airmass":null,"alt":-12.8,"az":75.7,"t":"2037-05-18T11:50:00Z","terrain":0.69},{"above_terrain":false,"airmass":null,"alt":-11.9,"az":76.6,"t":"2037-05-18T11:55:00Z","terrain":0.71},{"above_terrain":false,"airmass":null,"alt":-10.98,"az":77.5,"t":"2037-05-18T12:00:00Z","terrain":0.67},{"above_terrain":false,"airmass":null,"alt":-10.07,"az":78.3,"t":"2037-05-18T12:05:00Z","terrain":0.61},{"above_terrain":false,"airmass":null,"alt":-9.15,"az":79.2,"t":"2037-05-18T12:10:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-8.23,"az":80.1,"t":"2037-05-18T12:15:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-7.31,"az":80.9,"t":"2037-05-18T12:20:00Z","terrain":0.66},{"above_terrain":false,"airmass":null,"alt":-6.38,"az":81.8,"t":"2037-05-18T12:25:00Z","terrain":0.77},{"above_terrain":false,"airmass":null,"alt":-5.45,"az":82.6,"t":"2037-05-18T12:30:00Z","terrain":0.59},{"above_terrain":false,"airmass":null,"alt":-4.52,"az":83.5,"t":"2037-05-18T12:35:00Z","terrain":0.43},{"above_terrain":false,"airmass":null,"alt":-3.59,"az":84.3,"t":"2037-05-18T12:40:00Z","terrain":0.36},{"above_terrain":false,"airmass":null,"alt":-2.66,"az":85.1,"t":"2037-05-18T12:45:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-1.73,"az":86.0,"t":"2037-05-18T12:50:00Z","terrain":0.17},{"above_terrain":false,"airmass":null,"alt":-0.79,"az":86.8,"t":"2037-05-18T12:55:00Z","terrain":0.09},{"above_terrain":true,"airmass":35.9,"alt":0.14,"az":87.7,"t":"2037-05-18T13:00:00Z","terrain":-0.02},{"above_terrain":true,"airmass":25.66,"alt":1.08,"az":88.5,"t":"2037-05-18T13:05:00Z","terrain":-0.13},{"above_terrain":true,"airmass":19.37,"alt":2.01,"az":89.3,"t":"2037-05-18T13:10:00Z","terrain":-0.21},{"above_terrain":true,"airmass":15.33,"alt":2.95,"az":90.2,"t":"2037-05-18T13:15:00Z","terrain":-0.2},{"above_terrain":true,"airmass":12.58,"alt":3.88,"az":91.0,"t":"2037-05-18T13:20:00Z","terrain":-0.09},{"above_terrain":true,"airmass":10.62,"alt":4.82,"az":91.8,"t":"2037-05-18T13:25:00Z","terrain":0.07},{"above_terrain":true,"airmass":9.16,"alt":5.75,"az":92.7,"t":"2037-05-18T13:30:00Z","terrain":0.25},{"above_terrain":true,"airmass":8.04,"alt":6.69,"az":93.5,"t":"2037-05-18T13:35:00Z","terrain":0.37},{"above_terrain":true,"airmass":7.16,"alt":7.62,"az":94.3,"t":"2037-05-18T13:40:00Z","terrain":0.4},{"above_terrain":true,"airmass":6.45,"alt":8.56,"az":95.2,"t":"2037-05-18T13:45:00Z","terrain":0.41},{"above_terrain":true,"airmass":5.87,"alt":9.49,"az":96.0,"t":"2037-05-18T13:50:00Z","terrain":0.56},{"above_terrain":true,"airmass":5.38,"alt":10.42,"az":96.9,"t":"2037-05-18T13:55:00Z","terrain":0.71},{"above_terrain":true,"airmass":4.96,"alt":11.34,"az":97.7,"t":"2037-05-18T14:00:00Z","terrain":0.69},{"above_terrain":true,"airmass":4.61,"alt":12.27,"az":98.6,"t":"2037-05-18T14:05:00Z","terrain":0.56},{"above_terrain":true,"airmass":4.31,"alt":13.2,"az":99.5,"t":"2037-05-18T14:10:00Z","terrain":0.38},{"above_terrain":true,"airmass":4.04,"alt":14.12,"az":100.3,"t":"2037-05-18T14:15:00Z","terrain":0.2},{"above_terrain":true,"airmass":3.8,"alt":15.04,"az":101.2,"t":"2037-05-18T14:20:00Z","terrain":0.05},{"above_terrain":true,"airmass":3.6,"alt":15.95,"az":102.1,"t":"2037-05-18T14:25:00Z","terrain":-0.06},{"above_terrain":true,"airmass":3.41,"alt":16.87,"az":103.0,"t":"2037-05-18T14:30:00Z","terrain":-0.22},{"above_terrain":true,"airmass":3.25,"alt":17.78,"az":103.9,"t":"2037-05-18T14:35:00Z","terrain":-0.01},{"above_terrain":true,"airmass":3.1,"alt":18.68,"az":104.8,"t":"2037-05-18T14:40:00Z","terrain":-0.17},{"above_terrain":true,"airmass":2.96,"alt":19.59,"az":105.7,"t":"2037-05-18T14:45:00Z","terrain":-0.53},{"above_terrain":true,"airmass":2.84,"alt":20.49,"az":106.7,"t":"2037-05-18T14:50:00Z","terrain":-0.62},{"above_terrain":true,"airmass":2.73,"alt":21.38,"az":107.6,"t":"2037-05-18T14:55:00Z","terrain":-0.8},{"above_terrain":true,"airmass":2.62,"alt":22.27,"az":108.6,"t":"2037-05-18T15:00:00Z","terrain":-1.07},{"above_terrain":true,"airmass":2.53,"alt":23.15,"az":109.5,"t":"2037-05-18T15:05:00Z","terrain":-1.17},{"above_terrain":true,"airmass":2.44,"alt":24.03,"az":110.5,"t":"2037-05-18T15:10:00Z","terrain":-1.24},{"above_terrain":true,"airmass":2.36,"alt":24.91,"az":111.5,"t":"2037-05-18T15:15:00Z","terrain":-1.35},{"above_terrain":true,"airmass":2.29,"alt":25.78,"az":112.5,"t":"2037-05-18T15:20:00Z","terrain":-1.41},{"above_terrain":true,"airmass":2.22,"alt":26.64,"az":113.5,"t":"2037-05-18T15:25:00Z","terrain":-1.53},{"above_terrain":true,"airmass":2.16,"alt":27.49,"az":114.5,"t":"2037-05-18T15:30:00Z","terrain":-1.56},{"above_terrain":true,"airmass":2.1,"alt":28.34,"az":115.6,"t":"2037-05-18T15:35:00Z","terrain":-1.49},{"above_terrain":true,"airmass":2.04,"alt":29.18,"az":116.6,"t":"2037-05-18T15:40:00Z","terrain":-1.57},{"above_terrain":true,"airmass":1.99,"alt":30.01,"az":117.7,"t":"2037-05-18T15:45:00Z","terrain":-1.48},{"above_terrain":true,"airmass":1.95,"alt":30.84,"az":118.8,"t":"2037-05-18T15:50:00Z","terrain":-1.47},{"above_terrain":true,"airmass":1.9,"alt":31.65,"az":119.9,"t":"2037-05-18T15:55:00Z","terrain":-1.26},{"above_terrain":true,"airmass":1.86,"alt":32.46,"az":121.0,"t":"2037-05-18T16:00:00Z","terrain":-1.25},{"above_terrain":true,"airmass":1.82,"alt":33.26,"az":122.2,"t":"2037-05-18T16:05:00Z","terrain":-1.23},{"above_terrain":true,"airmass":1.78,"alt":34.05,"az":123.4,"t":"2037-05-18T16:10:00Z","terrain":-1.42},{"above_terrain":true,"airmass":1.75,"alt":34.82,"az":124.5,"t":"2037-05-18T16:15:00Z","terrain":-1.57},{"above_terrain":true,"airmass":1.72,"alt":35.59,"az":125.8,"t":"2037-05-18T16:20:00Z","terrain":-1.61},{"above_terrain":true,"airmass":1.68,"alt":36.34,"az":127.0,"t":"2037-05-18T16:25:00Z","terrain":-1.54},{"above_terrain":true,"airmass":1.66,"alt":37.08,"az":128.3,"t":"2037-05-18T16:30:00Z","terrain":-1.34},{"above_terrain":true,"airmass":1.63,"alt":37.81,"az":129.5,"t":"2037-05-18T16:35:00Z","terrain":-1.36},{"above_terrain":true,"airmass":1.6,"alt":38.53,"az":130.8,"t":"2037-05-18T16:40:00Z","terrain":-1.67},{"above_terrain":true,"airmass":1.58,"alt":39.23,"az":132.2,"t":"2037-05-18T16:45:00Z","terrain":-1.64},{"above_terrain":true,"airmass":1.56,"alt":39.91,"az":133.5,"t":"2037-05-18T16:50:00Z","terrain":-1.6},{"above_terrain":true,"airmass":1.53,"alt":40.58,"az":134.9,"t":"2037-05-18T16:55:00Z","terrain":-1.33},{"above_terrain":true,"airmass":1.51,"alt":41.24,"az":136.3,"t":"2037-05-18T17:00:00Z","terrain":-1.2},{"above_terrain":true,"airmass":1.5,"alt":41.88,"az":137.8,"t":"2037-05-18T17:05:00Z","terrain":-1.16},{"above_terrain":true,"airmass":1.48,"alt":42.5,"az":139.3,"t":"2037-05-18T17:10:00Z","terrain":-1.33},{"above_terrain":true,"airmass":1.46,"alt":43.1,"az":140.7,"t":"2037-05-18T17:15:00Z","terrain":-1.16},{"above_terrain":true,"airmass":1.45,"alt":43.68,"az":142.3,"t":"2037-05-18T17:20:00Z","terrain":-1.33},{"above_terrain":true,"airmass":1.43,"alt":44.24,"az":143.8,"t":"2037-05-18T17:25:00Z","terrain":-1.34},{"above_terrain":true,"airmass":1.42,"alt":44.78,"az":145.4,"t":"2037-05-18T17:30:00Z","terrain":-1.5},{"above_terrain":true,"airmass":1.41,"alt":45.3,"az":147.0,"t":"2037-05-18T17:35:00Z","terrain":-1.3},{"above_terrain":true,"airmass":1.39,"alt":45.8,"az":148.7,"t":"2037-05-18T17:40:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.38,"alt":46.28,"az":150.3,"t":"2037-05-18T17:45:00Z","terrain":-1.19},{"above_terrain":true,"airmass":1.37,"alt":46.73,"az":152.0,"t":"2037-05-18T17:50:00Z","terrain":-1.25},{"above_terrain":true,"airmass":1.36,"alt":47.15,"az":153.8,"t":"2037-05-18T17:55:00Z","terrain":-1.01},{"above_terrain":true,"airmass":1.35,"alt":47.56,"az":155.5,"t":"2037-05-18T18:00:00Z","terrain":-1.17},{"above_terrain":true,"airmass":1.35,"alt":47.93,"az":157.3,"t":"2037-05-18T18:05:00Z","terrain":-1.08},{"above_terrain":true,"airmass":1.34,"alt":48.28,"az":159.1,"t":"2037-05-18T18:10:00Z","terrain":-1.3},{"above_terrain":true,"airmass":1.33,"alt":48.6,"az":160.9,"t":"2037-05-18T18:15:00Z","terrain":-1.14},{"above_terrain":true,"airmass":1.33,"alt":48.89,"az":162.8,"t":"2037-05-18T18:20:00Z","terrain":-1.36},{"above_terrain":true,"airmass":1.32,"alt":49.15,"az":164.6,"t":"2037-05-18T18:25:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.32,"alt":49.39,"az":166.5,"t":"2037-05-18T18:30:00Z","terrain":-1.2},{"above_terrain":true,"airmass":1.31,"alt":49.59,"az":168.4,"t":"2037-05-18T18:35:00Z","terrain":-0.89},{"above_terrain":true,"airmass":1.31,"alt":49.76,"az":170.3,"t":"2037-05-18T18:40:00Z","terrain":-0.61},{"above_terrain":true,"airmass":1.31,"alt":49.9,"az":172.3,"t":"2037-05-18T18:45:00Z","terrain":-0.56},{"above_terrain":true,"airmass":1.3,"alt":50.01,"az":174.2,"t":"2037-05-18T18:50:00Z","terrain":-0.4},{"above_terrain":true,"airmass":1.3,"alt":50.09,"az":176.2,"t":"2037-05-18T18:55:00Z","terrain":-0.4},{"above_terrain":true,"airmass":1.3,"alt":50.14,"az":178.1,"t":"2037-05-18T19:00:00Z","terrain":-0.39},{"above_terrain":true,"airmass":1.3,"alt":50.15,"az":180.1,"t":"2037-05-18T19:05:00Z","terrain":-0.56},{"above_terrain":true,"airmass":1.3,"alt":50.14,"az":182.0,"t":"2037-05-18T19:10:00Z","terrain":-0.68},{"above_terrain":true,"airmass":1.3,"alt":50.09,"az":184.0,"t":"2037-05-18T19:15:00Z","terrain":-0.6},{"above_terrain":true,"airmass":1.3,"alt":50.01,"az":185.9,"t":"2037-05-18T19:20:00Z","terrain":-0.72},{"above_terrain":true,"airmass":1.31,"alt":49.89,"az":187.9,"t":"2037-05-18T19:25:00Z","terrain":-0.65},{"above_terrain":true,"airmass":1.31,"alt":49.75,"az":189.8,"t":"2037-05-18T19:30:00Z","terrain":-0.57},{"above_terrain":true,"airmass":1.31,"alt":49.58,"az":191.7,"t":"2037-05-18T19:35:00Z","terrain":-0.42},{"above_terrain":true,"airmass":1.32,"alt":49.37,"az":193.6,"t":"2037-05-18T19:40:00Z","terrain":-0.47},{"above_terrain":true,"airmass":1.32,"alt":49.14,"az":195.5,"t":"2037-05-18T19:45:00Z","terrain":-0.54},{"above_terrain":true,"airmass":1.33,"alt":48.87,"az":197.4,"t":"2037-05-18T19:50:00Z","terrain":-0.41},{"above_terrain":true,"airmass":1.33,"alt":48.58,"az":199.2,"t":"2037-05-18T19:55:00Z","terrain":-0.31},{"above_terrain":true,"airmass":1.34,"alt":48.26,"az":201.0,"t":"2037-05-18T20:00:00Z","terrain":-0.52},{"above_terrain":true,"airmass":1.35,"alt":47.91,"az":202.8,"t":"2037-05-18T20:05:00Z","terrain":-0.61},{"above_terrain":true,"airmass":1.35,"alt":47.53,"az":204.6,"t":"2037-05-18T20:10:00Z","terrain":-0.33},{"above_terrain":true,"airmass":1.36,"alt":47.13,"az":206.4,"t":"2037-05-18T20:15:00Z","terrain":0.14},{"above_terrain":true,"airmass":1.37,"alt":46.7,"az":208.1,"t":"2037-05-18T20:20:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.38,"alt":46.25,"az":209.8,"t":"2037-05-18T20:25:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.39,"alt":45.77,"az":211.4,"t":"2037-05-18T20:30:00Z","terrain":0.64},{"above_terrain":true,"airmass":1.41,"alt":45.27,"az":213.1,"t":"2037-05-18T20:35:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.42,"alt":44.75,"az":214.7,"t":"2037-05-18T20:40:00Z","terrain":0.65},{"above_terrain":true,"airmass":1.43,"alt":44.2,"az":216.3,"t":"2037-05-18T20:45:00Z","terrain":0.76},{"above_terrain":true,"airmass":1.45,"alt":43.64,"az":217.8,"t":"2037-05-18T20:50:00Z","terrain":1.22},{"above_terrain":true,"airmass":1.46,"alt":43.06,"az":219.4,"t":"2037-05-18T20:55:00Z","terrain":1.24},{"above_terrain":true,"airmass":1.48,"alt":42.45,"az":220.8,"t":"2037-05-18T21:00:00Z","terrain":1.14},{"above_terrain":true,"airmass":1.5,"alt":41.83,"az":222.3,"t":"2037-05-18T21:05:00Z","terrain":0.96},{"above_terrain":true,"airmass":1.52,"alt":41.19,"az":223.8,"t":"2037-05-18T21:10:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.54,"alt":40.54,"az":225.2,"t":"2037-05-18T21:15:00Z","terrain":0.42},{"above_terrain":true,"airmass":1.56,"alt":39.87,"az":226.6,"t":"2037-05-18T21:20:00Z","terrain":0.82},{"above_terrain":true,"airmass":1.58,"alt":39.18,"az":227.9,"t":"2037-05-18T21:25:00Z","terrain":1.12},{"above_terrain":true,"airmass":1.6,"alt":38.48,"az":229.2,"t":"2037-05-18T21:30:00Z","terrain":1.27},{"above_terrain":true,"airmass":1.63,"alt":37.76,"az":230.5,"t":"2037-05-18T21:35:00Z","terrain":1.0},{"above_terrain":true,"airmass":1.66,"alt":37.03,"az":231.8,"t":"2037-05-18T21:40:00Z","terrain":0.89},{"above_terrain":true,"airmass":1.69,"alt":36.29,"az":233.1,"t":"2037-05-18T21:45:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.72,"alt":35.54,"az":234.3,"t":"2037-05-18T21:50:00Z","terrain":0.87},{"above_terrain":true,"airmass":1.75,"alt":34.77,"az":235.5,"t":"2037-05-18T21:55:00Z","terrain":0.87},{"above_terrain":true,"airmass":1.78,"alt":33.99,"az":236.7,"t":"2037-05-18T22:00:00Z","terrain":0.82},{"above_terrain":true,"airmass":1.82,"alt":33.2,"az":237.9,"t":"2037-05-18T22:05:00Z","terrain":0.8},{"above_terrain":true,"airmass":1.86,"alt":32.41,"az":239.0,"t":"2037-05-18T22:10:00Z","terrain":0.51},{"above_terrain":true,"airmass":1.9,"alt":31.6,"az":240.2,"t":"2037-05-18T22:15:00Z","terrain":0.8},{"above_terrain":true,"airmass":1.95,"alt":30.78,"az":241.3,"t":"2037-05-18T22:20:00Z","terrain":0.83},{"above_terrain":true,"airmass":2.0,"alt":29.96,"az":242.4,"t":"2037-05-18T22:25:00Z","terrain":1.03},{"above_terrain":true,"airmass":2.05,"alt":29.12,"az":243.5,"t":"2037-05-18T22:30:00Z","terrain":0.98},{"above_terrain":true,"airmass":2.1,"alt":28.28,"az":244.5,"t":"2037-05-18T22:35:00Z","terrain":0.97},{"above_terrain":true,"airmass":2.16,"alt":27.44,"az":245.6,"t":"2037-05-18T22:40:00Z","terrain":1.1},{"above_terrain":true,"airmass":2.23,"alt":26.58,"az":246.6,"t":"2037-05-18T22:45:00Z","terrain":1.09},{"above_terrain":true,"airmass":2.3,"alt":25.72,"az":247.6,"t":"2037-05-18T22:50:00Z","terrain":0.76},{"above_terrain":true,"airmass":2.37,"alt":24.85,"az":248.6,"t":"2037-05-18T22:55:00Z","terrain":0.53},{"above_terrain":true,"airmass":2.45,"alt":23.97,"az":249.6,"t":"2037-05-18T23:00:00Z","terrain":0.55},{"above_terrain":true,"airmass":2.54,"alt":23.1,"az":250.6,"t":"2037-05-18T23:05:00Z","terrain":0.57},{"above_terrain":true,"airmass":2.63,"alt":22.21,"az":251.5,"t":"2037-05-18T23:10:00Z","terrain":0.38},{"above_terrain":true,"airmass":2.73,"alt":21.32,"az":252.5,"t":"2037-05-18T23:15:00Z","terrain":0.19},{"above_terrain":true,"airmass":2.85,"alt":20.43,"az":253.4,"t":"2037-05-18T23:20:00Z","terrain":0.17},{"above_terrain":true,"airmass":2.97,"alt":19.53,"az":254.3,"t":"2037-05-18T23:25:00Z","terrain":0.19},{"above_terrain":true,"airmass":3.11,"alt":18.62,"az":255.2,"t":"2037-05-18T23:30:00Z","terrain":0.28},{"above_terrain":true,"airmass":3.26,"alt":17.72,"az":256.2,"t":"2037-05-18T23:35:00Z","terrain":0.4},{"above_terrain":true,"airmass":3.42,"alt":16.81,"az":257.1,"t":"2037-05-18T23:40:00Z","terrain":0.43},{"above_terrain":true,"airmass":3.61,"alt":15.89,"az":258.0,"t":"2037-05-18T23:45:00Z","terrain":0.36},{"above_terrain":true,"airmass":3.82,"alt":14.97,"az":258.8,"t":"2037-05-18T23:50:00Z","terrain":0.46},{"above_terrain":true,"airmass":4.06,"alt":14.06,"az":259.7,"t":"2037-05-18T23:55:00Z","terrain":0.54},{"above_terrain":true,"airmass":4.32,"alt":13.13,"az":260.6,"t":"2037-05-19T00:00:00Z","terrain":0.72},{"above_terrain":true,"airmass":4.63,"alt":12.21,"az":261.5,"t":"2037-05-19T00:05:00Z","terrain":0.9},{"above_terrain":true,"airmass":4.99,"alt":11.28,"az":262.3,"t":"2037-05-19T00:10:00Z","terrain":0.93},{"above_terrain":true,"airmass":5.41,"alt":10.35,"az":263.2,"t":"2037-05-19T00:15:00Z","terrain":0.76},{"above_terrain":true,"airmass":5.9,"alt":9.42,"az":264.0,"t":"2037-05-19T00:20:00Z","terrain":0.52},{"above_terrain":true,"airmass":6.49,"alt":8.49,"az":264.9,"t":"2037-05-19T00:25:00Z","terrain":0.41},{"above_terrain":true,"airmass":7.22,"alt":7.56,"az":265.7,"t":"2037-05-19T00:30:00Z","terrain":0.45},{"above_terrain":true,"airmass":8.11,"alt":6.63,"az":266.6,"t":"2037-05-19T00:35:00Z","terrain":0.53},{"above_terrain":true,"airmass":9.25,"alt":5.69,"az":267.4,"t":"2037-05-19T00:40:00Z","terrain":0.6},{"above_terrain":true,"airmass":10.74,"alt":4.76,"az":268.2,"t":"2037-05-19T00:45:00Z","terrain":0.67},{"above_terrain":true,"airmass":12.74,"alt":3.82,"az":269.1,"t":"2037-05-19T00:50:00Z","terrain":0.76},{"above_terrain":true,"airmass":15.56,"alt":2.88,"az":269.9,"t":"2037-05-19T00:55:00Z","terrain":0.89},{"above_terrain":true,"airmass":19.71,"alt":1.95,"az":270.7,"t":"2037-05-19T01:00:00Z","terrain":0.81},{"above_terrain":true,"airmass":26.2,"alt":1.01,"az":271.6,"t":"2037-05-19T01:05:00Z","terrain":0.57},{"above_terrain":false,"airmass":36.8,"alt":0.08,"az":272.4,"t":"2037-05-19T01:10:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-0.86,"az":273.2,"t":"2037-05-19T01:15:00Z","terrain":0.1},{"above_terrain":false,"airmass":null,"alt":-1.79,"az":274.1,"t":"2037-05-19T01:20:00Z","terrain":-0.02},{"above_terrain":false,"airmass":null,"alt":-2.73,"az":274.9,"t":"2037-05-19T01:25:00Z","terrain":0.08},{"above_terrain":false,"airmass":null,"alt":-3.66,"az":275.7,"t":"2037-05-19T01:30:00Z","terrain":0.02},{"above_terrain":false,"airmass":null,"alt":-4.59,"az":276.6,"t":"2037-05-19T01:35:00Z","terrain":-0.09},{"above_terrain":false,"airmass":null,"alt":-5.52,"az":277.4,"t":"2037-05-19T01:40:00Z","terrain":-0.11},{"above_terrain":false,"airmass":null,"alt":-6.44,"az":278.3,"t":"2037-05-19T01:45:00Z","terrain":-0.06},{"above_terrain":false,"airmass":null,"alt":-7.37,"az":279.1,"t":"2037-05-19T01:50:00Z","terrain":-0.03},{"above_terrain":false,"airmass":null,"alt":-8.29,"az":280.0,"t":"2037-05-19T01:55:00Z","terrain":-0.13},{"above_terrain":false,"airmass":null,"alt":-9.21,"az":280.8,"t":"2037-05-19T02:00:00Z","terrain":0.01},{"above_terrain":false,"airmass":null,"alt":-10.13,"az":281.7,"t":"2037-05-19T02:05:00Z","terrain":-0.08},{"above_terrain":false,"airmass":null,"alt":-11.05,"az":282.6,"t":"2037-05-19T02:10:00Z","terrain":-0.06},{"above_terrain":false,"airmass":null,"alt":-11.96,"az":283.5,"t":"2037-05-19T02:15:00Z","terrain":0.05},{"above_terrain":false,"airmass":null,"alt":-12.87,"az":284.3,"t":"2037-05-19T02:20:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-13.77,"az":285.2,"t":"2037-05-19T02:25:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-14.67,"az":286.1,"t":"2037-05-19T02:30:00Z","terrain":0.24},{"above_terrain":false,"airmass":null,"alt":-15.57,"az":287.0,"t":"2037-05-19T02:35:00Z","terrain":0.36},{"above_terrain":false,"airmass":null,"alt":-16.46,"az":287.9,"t":"2037-05-19T02:40:00Z","terrain":0.18},{"above_terrain":false,"airmass":null,"alt":-17.35,"az":288.9,"t":"2037-05-19T02:45:00Z","terrain":0.18},{"above_terrain":false,"airmass":null,"alt":-18.23,"az":289.8,"t":"2037-05-19T02:50:00Z","terrain":0.27},{"above_terrain":false,"airmass":null,"alt":-19.11,"az":290.7,"t":"2037-05-19T02:55:00Z","terrain":0.44},{"above_terrain":false,"airmass":null,"alt":-19.98,"az":291.7,"t":"2037-05-19T03:00:00Z","terrain":0.53},{"above_terrain":false,"airmass":null,"alt":-20.85,"az":292.7,"t":"2037-05-19T03:05:00Z","terrain":0.37},{"above_terrain":false,"airmass":null,"alt":-21.71,"az":293.6,"t":"2037-05-19T03:10:00Z","terrain":0.26},{"above_terrain":false,"airmass":null,"alt":-22.56,"az":294.6,"t":"2037-05-19T03:15:00Z","terrain":0.24},{"above_terrain":false,"airmass":null,"alt":-23.41,"az":295.6,"t":"2037-05-19T03:20:00Z","terrain":0.29},{"above_terrain":false,"airmass":null,"alt":-24.25,"az":296.7,"t":"2037-05-19T03:25:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-25.08,"az":297.7,"t":"2037-05-19T03:30:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-25.91,"az":298.7,"t":"2037-05-19T03:35:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-26.73,"az":299.8,"t":"2037-05-19T03:40:00Z","terrain":0.33},{"above_terrain":false,"airmass":null,"alt":-27.53,"az":300.9,"t":"2037-05-19T03:45:00Z","terrain":0.33},{"above_terrain":false,"airmass":null,"alt":-28.33,"az":302.0,"t":"2037-05-19T03:50:00Z","terrain":0.09},{"above_terrain":false,"airmass":null,"alt":-29.12,"az":303.1,"t":"2037-05-19T03:55:00Z","terrain":-0.22},{"above_terrain":false,"airmass":null,"alt":-29.9,"az":304.2,"t":"2037-05-19T04:00:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-30.67,"az":305.3,"t":"2037-05-19T04:05:00Z","terrain":-0.25},{"above_terrain":false,"airmass":null,"alt":-31.43,"az":306.5,"t":"2037-05-19T04:10:00Z","terrain":0.01},{"above_terrain":false,"airmass":null,"alt":-32.17,"az":307.7,"t":"2037-05-19T04:15:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-32.91,"az":308.9,"t":"2037-05-19T04:20:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-33.63,"az":310.1,"t":"2037-05-19T04:25:00Z","terrain":0.24},{"above_terrain":false,"airmass":null,"alt":-34.34,"az":311.4,"t":"2037-05-19T04:30:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-35.04,"az":312.6,"t":"2037-05-19T04:35:00Z","terrain":0.22},{"above_terrain":false,"airmass":null,"alt":-35.72,"az":313.9,"t":"2037-05-19T04:40:00Z","terrain":0.45},{"above_terrain":false,"airmass":null,"alt":-36.38,"az":315.2,"t":"2037-05-19T04:45:00Z","terrain":0.54},{"above_terrain":false,"airmass":null,"alt":-37.04,"az":316.6,"t":"2037-05-19T04:50:00Z","terrain":0.38},{"above_terrain":false,"airmass":null,"alt":-37.67,"az":317.9,"t":"2037-05-19T04:55:00Z","terrain":0.33},{"above_terrain":false,"airmass":null,"alt":-38.29,"az":319.3,"t":"2037-05-19T05:00:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-38.89,"az":320.7,"t":"2037-05-19T05:05:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-39.48,"az":322.1,"t":"2037-05-19T05:10:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-40.04,"az":323.6,"t":"2037-05-19T05:15:00Z","terrain":-0.09},{"above_terrain":false,"airmass":null,"alt":-40.59,"az":325.1,"t":"2037-05-19T05:20:00Z","terrain":-0.19},{"above_terrain":false,"airmass":null,"alt":-41.11,"az":326.6,"t":"2037-05-19T05:25:00Z","terrain":-0.33},{"above_terrain":false,"airmass":null,"alt":-41.62,"az":328.1,"t":"2037-05-19T05:30:00Z","terrain":-0.22},{"above_terrain":false,"airmass":null,"alt":-42.1,"az":329.7,"t":"2037-05-19T05:35:00Z","terrain":-0.27},{"above_terrain":false,"airmass":null,"alt":-42.56,"az":331.2,"t":"2037-05-19T05:40:00Z","terrain":-0.33},{"above_terrain":false,"airmass":null,"alt":-43.0,"az":332.8,"t":"2037-05-19T05:45:00Z","terrain":-0.12},{"above_terrain":false,"airmass":null,"alt":-43.42,"az":334.5,"t":"2037-05-19T05:50:00Z","terrain":-0.39},{"above_terrain":false,"airmass":null,"alt":-43.81,"az":336.1,"t":"2037-05-19T05:55:00Z","terrain":-0.82},{"above_terrain":false,"airmass":null,"alt":-44.17,"az":337.8,"t":"2037-05-19T06:00:00Z","terrain":-0.53},{"above_terrain":false,"airmass":null,"alt":-44.52,"az":339.4,"t":"2037-05-19T06:05:00Z","terrain":-0.65},{"above_terrain":false,"airmass":null,"alt":-44.83,"az":341.2,"t":"2037-05-19T06:10:00Z","terrain":-0.45},{"above_terrain":false,"airmass":null,"alt":-45.12,"az":342.9,"t":"2037-05-19T06:15:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-45.38,"az":344.6,"t":"2037-05-19T06:20:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-45.62,"az":346.4,"t":"2037-05-19T06:25:00Z","terrain":-0.5},{"above_terrain":false,"airmass":null,"alt":-45.82,"az":348.1,"t":"2037-05-19T06:30:00Z","terrain":-0.12},{"above_terrain":false,"airmass":null,"alt":-46.0,"az":349.9,"t":"2037-05-19T06:35:00Z","terrain":0.13},{"above_terrain":false,"airmass":null,"alt":-46.15,"az":351.7,"t":"2037-05-19T06:40:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-46.27,"az":353.5,"t":"2037-05-19T06:45:00Z","terrain":0.56},{"above_terrain":false,"airmass":null,"alt":-46.36,"az":355.3,"t":"2037-05-19T06:50:00Z","terrain":0.66},{"above_terrain":false,"airmass":null,"alt":-46.42,"az":357.1,"t":"2037-05-19T06:55:00Z","terrain":0.73},{"above_terrain":false,"airmass":null,"alt":-46.46,"az":359.0,"t":"2037-05-19T07:00:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-46.46,"az":0.8,"t":"2037-05-19T07:05:00Z","terrain":0.4},{"above_terrain":false,"airmass":null,"alt":-46.43,"az":2.6,"t":"2037-05-19T07:10:00Z","terrain":-0.03},{"above_terrain":false,"airmass":null,"alt":-46.37,"az":4.4,"t":"2037-05-19T07:15:00Z","terrain":-0.34},{"above_terrain":false,"airmass":null,"alt":-46.29,"az":6.2,"t":"2037-05-19T07:20:00Z","terrain":-0.55},{"above_terrain":false,"airmass":null,"alt":-46.17,"az":8.0,"t":"2037-05-19T07:25:00Z","terrain":-0.42},{"above_terrain":false,"airmass":null,"alt":-46.03,"az":9.8,"t":"2037-05-19T07:30:00Z","terrain":-0.61},{"above_terrain":false,"airmass":null,"alt":-45.85,"az":11.6,"t":"2037-05-19T07:35:00Z","terrain":-0.27},{"above_terrain":false,"airmass":null,"alt":-45.65,"az":13.4,"t":"2037-05-19T07:40:00Z","terrain":-0.01},{"above_terrain":false,"airmass":null,"alt":-45.42,"az":15.1,"t":"2037-05-19T07:45:00Z","terrain":0.42},{"above_terrain":false,"airmass":null,"alt":-45.16,"az":16.9,"t":"2037-05-19T07:50:00Z","terrain":0.47},{"above_terrain":false,"airmass":null,"alt":-44.88,"az":18.6,"t":"2037-05-19T07:55:00Z","terrain":0.58},{"above_terrain":false,"airmass":null,"alt":-44.56,"az":20.3,"t":"2037-05-19T08:00:00Z","terrain":0.68},{"above_terrain":false,"airmass":null,"alt":-44.23,"az":22.0,"t":"2037-05-19T08:05:00Z","terrain":0.99},{"above_terrain":false,"airmass":null,"alt":-43.86,"az":23.7,"t":"2037-05-19T08:10:00Z","terrain":1.0},{"above_terrain":false,"airmass":null,"alt":-43.48,"az":25.3,"t":"2037-05-19T08:15:00Z","terrain":1.26},{"above_terrain":false,"airmass":null,"alt":-43.06,"az":26.9,"t":"2037-05-19T08:20:00Z","terrain":1.28},{"above_terrain":false,"airmass":null,"alt":-42.63,"az":28.5,"t":"2037-05-19T08:25:00Z","terrain":1.09},{"above_terrain":false,"airmass":null,"alt":-42.17,"az":30.1,"t":"2037-05-19T08:30:00Z","terrain":1.17},{"above_terrain":false,"airmass":null,"alt":-41.69,"az":31.7,"t":"2037-05-19T08:35:00Z","terrain":1.32},{"above_terrain":false,"airmass":null,"alt":-41.19,"az":33.2,"t":"2037-05-19T08:40:00Z","terrain":0.88},{"above_terrain":false,"airmass":null,"alt":-40.66,"az":34.7,"t":"2037-05-19T08:45:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-40.12,"az":36.2,"t":"2037-05-19T08:50:00Z","terrain":0.01},{"above_terrain":false,"airmass":null,"alt":-39.56,"az":37.6,"t":"2037-05-19T08:55:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-38.98,"az":39.1,"t":"2037-05-19T09:00:00Z","terrain":-0.15}],"transit":{"airmass":1.3,"alt":50.2,"az":180.1,"t":"2037-05-18T19:05:00Z"},"usable_hours":3.75,"verdict":"marginal","zenith_passage":false},"warnings":["No cloud data for this night (beyond the 4-day forecast, or not yet in the archive) \u2014 the score is geometry only."]}