{"assessment":{"best_window":{"end":"2028-09-20T23:00Z","end_local":"02:00","hours":5.08,"label":"good","mean_quality":0.91,"start":"2028-09-20T17:55Z","start_local":"20:55"},"cost":{"altitude":4.17,"clouds":0.0,"darkness":1.25,"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":87,"cloud":null,"high":null,"iso":"2028-09-20T17:00Z","label":"poor","low":null,"mid":null,"moon_alt":-2,"precip":null,"q":0.15,"rh":null,"sky":"nautical twilight","temp":null,"time":"20:00","wind":null},{"alt":78,"cloud":null,"high":null,"iso":"2028-09-20T18:00Z","label":"good","low":null,"mid":null,"moon_alt":-12,"precip":null,"q":1.0,"rh":null,"sky":"night","temp":null,"time":"21:00","wind":null},{"alt":67,"cloud":null,"high":null,"iso":"2028-09-20T19:00Z","label":"good","low":null,"mid":null,"moon_alt":-23,"precip":null,"q":1.0,"rh":null,"sky":"night","temp":null,"time":"22:00","wind":null},{"alt":56,"cloud":null,"high":null,"iso":"2028-09-20T20:00Z","label":"good","low":null,"mid":null,"moon_alt":-34,"precip":null,"q":0.97,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":45,"cloud":null,"high":null,"iso":"2028-09-20T21:00Z","label":"good","low":null,"mid":null,"moon_alt":-44,"precip":null,"q":0.9,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":34,"cloud":null,"high":null,"iso":"2028-09-20T22:00Z","label":"good","low":null,"mid":null,"moon_alt":-54,"precip":null,"q":0.83,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":24,"cloud":null,"high":null,"iso":"2028-09-20T23:00Z","label":"marginal","low":null,"mid":null,"moon_alt":-61,"precip":null,"q":0.57,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":15,"cloud":null,"high":null,"iso":"2028-09-21T00:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-65,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":7,"cloud":null,"high":null,"iso":"2028-09-21T01:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-63,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"04:00","wind":null},{"alt":0,"cloud":null,"high":null,"iso":"2028-09-21T02:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-56,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"05:00","wind":null},{"alt":-5,"cloud":null,"high":null,"iso":"2028-09-21T03:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-47,"precip":null,"q":0.0,"rh":null,"sky":"astronomical twilight","temp":null,"time":"06:00","wind":null},{"alt":-8,"cloud":null,"high":null,"iso":"2028-09-21T04:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-37,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"07:00","wind":null}],"peak_quality":1.0,"peak_sky":1.0,"quality_hours":5.21,"reasons":["the target being low or below 20\u00b0 cost 4.2 quality-hours","daylight and twilight cost 1.2 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":100,"score_weather":null,"sky_hours":5.21,"verdict":"unknown","verdict_astronomy":"good","weather_known":false,"windows":[{"end":"2028-09-20T16:50Z","end_local":"19:50","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-09-20T16:20Z","start_local":"19:20"},{"end":"2028-09-20T17:25Z","end_local":"20:25","hours":0.58,"label":"poor","mean_quality":0.15,"start":"2028-09-20T16:50Z","start_local":"19:50"},{"end":"2028-09-20T17:55Z","end_local":"20:55","hours":0.5,"label":"marginal","mean_quality":0.5,"start":"2028-09-20T17:25Z","start_local":"20:25"},{"end":"2028-09-20T23:00Z","end_local":"02:00","hours":5.08,"label":"good","mean_quality":0.91,"start":"2028-09-20T17:55Z","start_local":"20:55"},{"end":"2028-09-20T23:30Z","end_local":"02:30","hours":0.5,"label":"marginal","mean_quality":0.49,"start":"2028-09-20T23:00Z","start_local":"02:00"},{"end":"2028-09-21T04:10Z","end_local":"07:10","hours":4.67,"label":"unusable","mean_quality":0.0,"start":"2028-09-20T23:30Z","start_local":"02:30"}]},"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":"2028-09-20T17:54:39Z","dark_hours":8.66,"dark_to":"2028-09-21T02:34:11Z","moon":{"illumination":0.071,"phase":"waxing crescent","waxing":true},"moon_free_dark_hours":8.65,"moonrise":"2028-09-21T07:34:13Z","moonset":"2028-09-20T16:48:38Z","sunrise":"2028-09-21T04:07:46Z","sunset":"2028-09-20T16:21:12Z","twilight":{"astronomical":{"end":"2028-09-20T17:54:39Z","start":"2028-09-21T02:34:11Z"},"civil":{"end":"2028-09-20T16:48:55Z","start":"2028-09-21T03:40:00Z"},"nautical":{"end":"2028-09-20T17:21:26Z","start":"2028-09-21T03:07:26Z"}},"window_end":"2028-09-21T09:00:00Z","window_start":"2028-09-20T09:00:00Z"},"night_date":"2028-09-20","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":1.02,"alt":78.8,"t":"2028-09-20T17:55:00Z"},"dec":38.78368896,"dec_of_date":38.8097,"dec_str":"+38\u00b0 47' 01.3\"","good_hours":4.5,"limit_rise":"2028-09-20T10:30:01Z","limit_set":"2028-09-20T23:27:01Z","max_az_rate_deg_per_min":3.83,"moon_separation":87.9,"never_rises":false,"ra":279.23473479,"ra_of_date":279.4759,"ra_str":"18h 36m 56.3s","resolved":{"common_name":"Vega","dec":38.78368896,"name":"* alf Lyr","ra":279.23473479,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=Vega","source":"sesame","spectral_type":"A0V","type":"dS*","type_text":"delta Scuti variable","vmag":0.03},"summary":"4.5 dark hours above 30\u00b0 \u2014 a proper target for this night.","terrain":{"available":true,"behind_at":"2028-09-21T02:03:03Z","blocked_dark_hours":0,"clears_at":"2028-09-21T07:58:19Z","rise_az":42.9},"track":[{"above_terrain":true,"airmass":7.49,"alt":7.26,"az":42.9,"t":"2028-09-20T09:00:00Z","terrain":0.24},{"above_terrain":true,"airmass":6.94,"alt":7.9,"az":43.6,"t":"2028-09-20T09:05:00Z","terrain":0.35},{"above_terrain":true,"airmass":6.46,"alt":8.55,"az":44.4,"t":"2028-09-20T09:10:00Z","terrain":0.47},{"above_terrain":true,"airmass":6.03,"alt":9.21,"az":45.1,"t":"2028-09-20T09:15:00Z","terrain":0.59},{"above_terrain":true,"airmass":5.65,"alt":9.87,"az":45.8,"t":"2028-09-20T09:20:00Z","terrain":0.65},{"above_terrain":true,"airmass":5.31,"alt":10.55,"az":46.5,"t":"2028-09-20T09:25:00Z","terrain":0.64},{"above_terrain":true,"airmass":5.01,"alt":11.23,"az":47.2,"t":"2028-09-20T09:30:00Z","terrain":0.59},{"above_terrain":true,"airmass":4.74,"alt":11.92,"az":48.0,"t":"2028-09-20T09:35:00Z","terrain":0.53},{"above_terrain":true,"airmass":4.49,"alt":12.62,"az":48.7,"t":"2028-09-20T09:40:00Z","terrain":0.45},{"above_terrain":true,"airmass":4.26,"alt":13.33,"az":49.3,"t":"2028-09-20T09:45:00Z","terrain":0.41},{"above_terrain":true,"airmass":4.06,"alt":14.04,"az":50.0,"t":"2028-09-20T09:50:00Z","terrain":0.4},{"above_terrain":true,"airmass":3.87,"alt":14.76,"az":50.7,"t":"2028-09-20T09:55:00Z","terrain":0.49},{"above_terrain":true,"airmass":3.7,"alt":15.49,"az":51.4,"t":"2028-09-20T10:00:00Z","terrain":0.57},{"above_terrain":true,"airmass":3.54,"alt":16.23,"az":52.1,"t":"2028-09-20T10:05:00Z","terrain":0.64},{"above_terrain":true,"airmass":3.39,"alt":16.97,"az":52.7,"t":"2028-09-20T10:10:00Z","terrain":0.78},{"above_terrain":true,"airmass":3.26,"alt":17.71,"az":53.4,"t":"2028-09-20T10:15:00Z","terrain":0.9},{"above_terrain":true,"airmass":3.13,"alt":18.47,"az":54.0,"t":"2028-09-20T10:20:00Z","terrain":1.0},{"above_terrain":true,"airmass":3.01,"alt":19.23,"az":54.7,"t":"2028-09-20T10:25:00Z","terrain":1.05},{"above_terrain":true,"airmass":2.9,"alt":20.0,"az":55.3,"t":"2028-09-20T10:30:00Z","terrain":1.07},{"above_terrain":true,"airmass":2.8,"alt":20.77,"az":56.0,"t":"2028-09-20T10:35:00Z","terrain":1.05},{"above_terrain":true,"airmass":2.71,"alt":21.55,"az":56.6,"t":"2028-09-20T10:40:00Z","terrain":1.06},{"above_terrain":true,"airmass":2.62,"alt":22.33,"az":57.2,"t":"2028-09-20T10:45:00Z","terrain":1.11},{"above_terrain":true,"airmass":2.53,"alt":23.12,"az":57.8,"t":"2028-09-20T10:50:00Z","terrain":1.22},{"above_terrain":true,"airmass":2.46,"alt":23.92,"az":58.5,"t":"2028-09-20T10:55:00Z","terrain":1.23},{"above_terrain":true,"airmass":2.38,"alt":24.72,"az":59.1,"t":"2028-09-20T11:00:00Z","terrain":1.21},{"above_terrain":true,"airmass":2.31,"alt":25.52,"az":59.7,"t":"2028-09-20T11:05:00Z","terrain":1.18},{"above_terrain":true,"airmass":2.25,"alt":26.33,"az":60.3,"t":"2028-09-20T11:10:00Z","terrain":1.15},{"above_terrain":true,"airmass":2.18,"alt":27.15,"az":60.9,"t":"2028-09-20T11:15:00Z","terrain":1.1},{"above_terrain":true,"airmass":2.13,"alt":27.97,"az":61.5,"t":"2028-09-20T11:20:00Z","terrain":1.05},{"above_terrain":true,"airmass":2.07,"alt":28.79,"az":62.1,"t":"2028-09-20T11:25:00Z","terrain":1.0},{"above_terrain":true,"airmass":2.02,"alt":29.62,"az":62.7,"t":"2028-09-20T11:30:00Z","terrain":0.94},{"above_terrain":true,"airmass":1.97,"alt":30.46,"az":63.3,"t":"2028-09-20T11:35:00Z","terrain":0.87},{"above_terrain":true,"airmass":1.92,"alt":31.29,"az":63.8,"t":"2028-09-20T11:40:00Z","terrain":0.79},{"above_terrain":true,"airmass":1.88,"alt":32.14,"az":64.4,"t":"2028-09-20T11:45:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.83,"alt":32.98,"az":65.0,"t":"2028-09-20T11:50:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.79,"alt":33.83,"az":65.6,"t":"2028-09-20T11:55:00Z","terrain":0.8},{"above_terrain":true,"airmass":1.75,"alt":34.69,"az":66.2,"t":"2028-09-20T12:00:00Z","terrain":0.85},{"above_terrain":true,"airmass":1.72,"alt":35.54,"az":66.7,"t":"2028-09-20T12:05:00Z","terrain":0.9},{"above_terrain":true,"airmass":1.68,"alt":36.41,"az":67.3,"t":"2028-09-20T12:10:00Z","terrain":0.95},{"above_terrain":true,"airmass":1.65,"alt":37.27,"az":67.9,"t":"2028-09-20T12:15:00Z","terrain":0.98},{"above_terrain":true,"airmass":1.62,"alt":38.14,"az":68.4,"t":"2028-09-20T12:20:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.59,"alt":39.01,"az":69.0,"t":"2028-09-20T12:25:00Z","terrain":1.05},{"above_terrain":true,"airmass":1.56,"alt":39.89,"az":69.5,"t":"2028-09-20T12:30:00Z","terrain":1.14},{"above_terrain":true,"airmass":1.53,"alt":40.77,"az":70.1,"t":"2028-09-20T12:35:00Z","terrain":1.22},{"above_terrain":true,"airmass":1.5,"alt":41.65,"az":70.7,"t":"2028-09-20T12:40:00Z","terrain":1.25},{"above_terrain":true,"airmass":1.48,"alt":42.53,"az":71.2,"t":"2028-09-20T12:45:00Z","terrain":1.25},{"above_terrain":true,"airmass":1.45,"alt":43.42,"az":71.8,"t":"2028-09-20T12:50:00Z","terrain":1.21},{"above_terrain":true,"airmass":1.43,"alt":44.31,"az":72.3,"t":"2028-09-20T12:55:00Z","terrain":1.13},{"above_terrain":true,"airmass":1.41,"alt":45.2,"az":72.9,"t":"2028-09-20T13:00:00Z","terrain":1.01},{"above_terrain":true,"airmass":1.39,"alt":46.1,"az":73.5,"t":"2028-09-20T13:05:00Z","terrain":0.87},{"above_terrain":true,"airmass":1.37,"alt":47.0,"az":74.0,"t":"2028-09-20T13:10:00Z","terrain":0.73},{"above_terrain":true,"airmass":1.35,"alt":47.9,"az":74.6,"t":"2028-09-20T13:15:00Z","terrain":0.67},{"above_terrain":true,"airmass":1.33,"alt":48.8,"az":75.1,"t":"2028-09-20T13:20:00Z","terrain":0.64},{"above_terrain":true,"airmass":1.31,"alt":49.71,"az":75.7,"t":"2028-09-20T13:25:00Z","terrain":0.69},{"above_terrain":true,"airmass":1.29,"alt":50.62,"az":76.2,"t":"2028-09-20T13:30:00Z","terrain":0.72},{"above_terrain":true,"airmass":1.28,"alt":51.53,"az":76.8,"t":"2028-09-20T13:35:00Z","terrain":0.7},{"above_terrain":true,"airmass":1.26,"alt":52.44,"az":77.4,"t":"2028-09-20T13:40:00Z","terrain":0.67},{"above_terrain":true,"airmass":1.25,"alt":53.35,"az":77.9,"t":"2028-09-20T13:45:00Z","terrain":0.63},{"above_terrain":true,"airmass":1.23,"alt":54.27,"az":78.5,"t":"2028-09-20T13:50:00Z","terrain":0.6},{"above_terrain":true,"airmass":1.22,"alt":55.19,"az":79.1,"t":"2028-09-20T13:55:00Z","terrain":0.56},{"above_terrain":true,"airmass":1.2,"alt":56.11,"az":79.7,"t":"2028-09-20T14:00:00Z","terrain":0.5},{"above_terrain":true,"airmass":1.19,"alt":57.03,"az":80.3,"t":"2028-09-20T14:05:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.18,"alt":57.95,"az":80.9,"t":"2028-09-20T14:10:00Z","terrain":0.65},{"above_terrain":true,"airmass":1.17,"alt":58.88,"az":81.5,"t":"2028-09-20T14:15:00Z","terrain":0.73},{"above_terrain":true,"airmass":1.16,"alt":59.8,"az":82.1,"t":"2028-09-20T14:20:00Z","terrain":0.78},{"above_terrain":true,"airmass":1.15,"alt":60.73,"az":82.7,"t":"2028-09-20T14:25:00Z","terrain":0.58},{"above_terrain":true,"airmass":1.14,"alt":61.66,"az":83.3,"t":"2028-09-20T14:30:00Z","terrain":0.44},{"above_terrain":true,"airmass":1.13,"alt":62.59,"az":83.9,"t":"2028-09-20T14:35:00Z","terrain":0.39},{"above_terrain":true,"airmass":1.12,"alt":63.52,"az":84.6,"t":"2028-09-20T14:40:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.11,"alt":64.45,"az":85.3,"t":"2028-09-20T14:45:00Z","terrain":0.27},{"above_terrain":true,"airmass":1.1,"alt":65.39,"az":85.9,"t":"2028-09-20T14:50:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.09,"alt":66.32,"az":86.6,"t":"2028-09-20T14:55:00Z","terrain":0.11},{"above_terrain":true,"airmass":1.08,"alt":67.25,"az":87.4,"t":"2028-09-20T15:00:00Z","terrain":0.02},{"above_terrain":true,"airmass":1.08,"alt":68.19,"az":88.1,"t":"2028-09-20T15:05:00Z","terrain":-0.08},{"above_terrain":true,"airmass":1.07,"alt":69.13,"az":88.9,"t":"2028-09-20T15:10:00Z","terrain":-0.18},{"above_terrain":true,"airmass":1.06,"alt":70.06,"az":89.7,"t":"2028-09-20T15:15:00Z","terrain":-0.21},{"above_terrain":true,"airmass":1.06,"alt":71.0,"az":90.5,"t":"2028-09-20T15:20:00Z","terrain":-0.15},{"above_terrain":true,"airmass":1.05,"alt":71.93,"az":91.4,"t":"2028-09-20T15:25:00Z","terrain":-0.02},{"above_terrain":true,"airmass":1.05,"alt":72.87,"az":92.3,"t":"2028-09-20T15:30:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.04,"alt":73.8,"az":93.3,"t":"2028-09-20T15:35:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.04,"alt":74.74,"az":94.4,"t":"2028-09-20T15:40:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.03,"alt":75.67,"az":95.5,"t":"2028-09-20T15:45:00Z","terrain":0.46},{"above_terrain":true,"airmass":1.03,"alt":76.6,"az":96.7,"t":"2028-09-20T15:50:00Z","terrain":0.68},{"above_terrain":true,"airmass":1.02,"alt":77.53,"az":98.1,"t":"2028-09-20T15:55:00Z","terrain":0.66},{"above_terrain":true,"airmass":1.02,"alt":78.45,"az":99.6,"t":"2028-09-20T16:00:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.02,"alt":79.37,"az":101.3,"t":"2028-09-20T16:05:00Z","terrain":0.04},{"above_terrain":true,"airmass":1.01,"alt":80.29,"az":103.3,"t":"2028-09-20T16:10:00Z","terrain":-0.16},{"above_terrain":true,"airmass":1.01,"alt":81.2,"az":105.5,"t":"2028-09-20T16:15:00Z","terrain":-0.43},{"above_terrain":true,"airmass":1.01,"alt":82.09,"az":108.2,"t":"2028-09-20T16:20:00Z","terrain":-0.98},{"above_terrain":true,"airmass":1.01,"alt":82.97,"az":111.4,"t":"2028-09-20T16:25:00Z","terrain":-1.35},{"above_terrain":true,"airmass":1.01,"alt":83.83,"az":115.5,"t":"2028-09-20T16:30:00Z","terrain":-1.49},{"above_terrain":true,"airmass":1.0,"alt":84.66,"az":120.7,"t":"2028-09-20T16:35:00Z","terrain":-1.25},{"above_terrain":true,"airmass":1.0,"alt":85.43,"az":127.6,"t":"2028-09-20T16:40:00Z","terrain":-1.46},{"above_terrain":true,"airmass":1.0,"alt":86.13,"az":137.0,"t":"2028-09-20T16:45:00Z","terrain":-1.23},{"above_terrain":true,"airmass":1.0,"alt":86.69,"az":149.8,"t":"2028-09-20T16:50:00Z","terrain":-1.23},{"above_terrain":true,"airmass":1.0,"alt":87.04,"az":166.6,"t":"2028-09-20T16:55:00Z","terrain":-1.2},{"above_terrain":true,"airmass":1.0,"alt":87.1,"az":185.7,"t":"2028-09-20T17:00:00Z","terrain":-0.69},{"above_terrain":true,"airmass":1.0,"alt":86.86,"az":203.8,"t":"2028-09-20T17:05:00Z","terrain":-0.58},{"above_terrain":true,"airmass":1.0,"alt":86.38,"az":218.2,"t":"2028-09-20T17:10:00Z","terrain":1.26},{"above_terrain":true,"airmass":1.0,"alt":85.73,"az":228.9,"t":"2028-09-20T17:15:00Z","terrain":1.29},{"above_terrain":true,"airmass":1.0,"alt":84.98,"az":236.7,"t":"2028-09-20T17:20:00Z","terrain":0.82},{"above_terrain":true,"airmass":1.0,"alt":84.17,"az":242.5,"t":"2028-09-20T17:25:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.01,"alt":83.33,"az":247.0,"t":"2028-09-20T17:30:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.01,"alt":82.45,"az":250.6,"t":"2028-09-20T17:35:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.01,"alt":81.56,"az":253.4,"t":"2028-09-20T17:40:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.01,"alt":80.66,"az":255.9,"t":"2028-09-20T17:45:00Z","terrain":0.37},{"above_terrain":true,"airmass":1.02,"alt":79.75,"az":257.9,"t":"2028-09-20T17:50:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.02,"alt":78.83,"az":259.7,"t":"2028-09-20T17:55:00Z","terrain":0.54},{"above_terrain":true,"airmass":1.02,"alt":77.91,"az":261.3,"t":"2028-09-20T18:00:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.03,"alt":76.98,"az":262.7,"t":"2028-09-20T18:05:00Z","terrain":0.86},{"above_terrain":true,"airmass":1.03,"alt":76.05,"az":264.0,"t":"2028-09-20T18:10:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.03,"alt":75.12,"az":265.2,"t":"2028-09-20T18:15:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.04,"alt":74.19,"az":266.3,"t":"2028-09-20T18:20:00Z","terrain":0.5},{"above_terrain":true,"airmass":1.04,"alt":73.25,"az":267.3,"t":"2028-09-20T18:25:00Z","terrain":0.59},{"above_terrain":true,"airmass":1.05,"alt":72.32,"az":268.2,"t":"2028-09-20T18:30:00Z","terrain":0.67},{"above_terrain":true,"airmass":1.05,"alt":71.38,"az":269.1,"t":"2028-09-20T18:35:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.06,"alt":70.44,"az":270.0,"t":"2028-09-20T18:40:00Z","terrain":0.9},{"above_terrain":true,"airmass":1.07,"alt":69.51,"az":270.8,"t":"2028-09-20T18:45:00Z","terrain":0.8},{"above_terrain":true,"airmass":1.07,"alt":68.57,"az":271.6,"t":"2028-09-20T18:50:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.08,"alt":67.64,"az":272.3,"t":"2028-09-20T18:55:00Z","terrain":0.32},{"above_terrain":true,"airmass":1.09,"alt":66.7,"az":273.1,"t":"2028-09-20T19:00:00Z","terrain":0.13},{"above_terrain":true,"airmass":1.1,"alt":65.77,"az":273.8,"t":"2028-09-20T19:05:00Z","terrain":0.01},{"above_terrain":true,"airmass":1.1,"alt":64.84,"az":274.5,"t":"2028-09-20T19:10:00Z","terrain":0.03},{"above_terrain":true,"airmass":1.11,"alt":63.9,"az":275.1,"t":"2028-09-20T19:15:00Z","terrain":0.08},{"above_terrain":true,"airmass":1.12,"alt":62.97,"az":275.8,"t":"2028-09-20T19:20:00Z","terrain":0.01},{"above_terrain":true,"airmass":1.13,"alt":62.04,"az":276.4,"t":"2028-09-20T19:25:00Z","terrain":-0.07},{"above_terrain":true,"airmass":1.14,"alt":61.11,"az":277.1,"t":"2028-09-20T19:30:00Z","terrain":-0.14},{"above_terrain":true,"airmass":1.15,"alt":60.18,"az":277.7,"t":"2028-09-20T19:35:00Z","terrain":-0.1},{"above_terrain":true,"airmass":1.16,"alt":59.26,"az":278.3,"t":"2028-09-20T19:40:00Z","terrain":-0.06},{"above_terrain":true,"airmass":1.17,"alt":58.33,"az":278.9,"t":"2028-09-20T19:45:00Z","terrain":-0.03},{"above_terrain":true,"airmass":1.19,"alt":57.41,"az":279.5,"t":"2028-09-20T19:50:00Z","terrain":-0.07},{"above_terrain":true,"airmass":1.2,"alt":56.48,"az":280.1,"t":"2028-09-20T19:55:00Z","terrain":-0.12},{"above_terrain":true,"airmass":1.21,"alt":55.56,"az":280.7,"t":"2028-09-20T20:00:00Z","terrain":-0.02},{"above_terrain":true,"airmass":1.23,"alt":54.64,"az":281.2,"t":"2028-09-20T20:05:00Z","terrain":-0.01},{"above_terrain":true,"airmass":1.24,"alt":53.73,"az":281.8,"t":"2028-09-20T20:10:00Z","terrain":-0.1},{"above_terrain":true,"airmass":1.25,"alt":52.81,"az":282.4,"t":"2028-09-20T20:15:00Z","terrain":-0.08},{"above_terrain":true,"airmass":1.27,"alt":51.9,"az":283.0,"t":"2028-09-20T20:20:00Z","terrain":-0.02},{"above_terrain":true,"airmass":1.29,"alt":50.99,"az":283.5,"t":"2028-09-20T20:25:00Z","terrain":0.06},{"above_terrain":true,"airmass":1.3,"alt":50.08,"az":284.1,"t":"2028-09-20T20:30:00Z","terrain":0.13},{"above_terrain":true,"airmass":1.32,"alt":49.17,"az":284.6,"t":"2028-09-20T20:35:00Z","terrain":0.19},{"above_terrain":true,"airmass":1.34,"alt":48.27,"az":285.2,"t":"2028-09-20T20:40:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.36,"alt":47.37,"az":285.8,"t":"2028-09-20T20:45:00Z","terrain":0.22},{"above_terrain":true,"airmass":1.38,"alt":46.47,"az":286.3,"t":"2028-09-20T20:50:00Z","terrain":0.27},{"above_terrain":true,"airmass":1.4,"alt":45.57,"az":286.9,"t":"2028-09-20T20:55:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.42,"alt":44.68,"az":287.4,"t":"2028-09-20T21:00:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.44,"alt":43.78,"az":288.0,"t":"2028-09-20T21:05:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.47,"alt":42.89,"az":288.5,"t":"2028-09-20T21:10:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.49,"alt":42.01,"az":289.1,"t":"2028-09-20T21:15:00Z","terrain":0.19},{"above_terrain":true,"airmass":1.52,"alt":41.13,"az":289.7,"t":"2028-09-20T21:20:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.55,"alt":40.25,"az":290.2,"t":"2028-09-20T21:25:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.57,"alt":39.37,"az":290.8,"t":"2028-09-20T21:30:00Z","terrain":0.45},{"above_terrain":true,"airmass":1.6,"alt":38.5,"az":291.3,"t":"2028-09-20T21:35:00Z","terrain":0.51},{"above_terrain":true,"airmass":1.64,"alt":37.63,"az":291.9,"t":"2028-09-20T21:40:00Z","terrain":0.54},{"above_terrain":true,"airmass":1.67,"alt":36.76,"az":292.5,"t":"2028-09-20T21:45:00Z","terrain":0.42},{"above_terrain":true,"airmass":1.7,"alt":35.9,"az":293.0,"t":"2028-09-20T21:50:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.74,"alt":35.04,"az":293.6,"t":"2028-09-20T21:55:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.78,"alt":34.18,"az":294.2,"t":"2028-09-20T22:00:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.82,"alt":33.33,"az":294.8,"t":"2028-09-20T22:05:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.86,"alt":32.48,"az":295.3,"t":"2028-09-20T22:10:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.9,"alt":31.64,"az":295.9,"t":"2028-09-20T22:15:00Z","terrain":0.32},{"above_terrain":true,"airmass":1.95,"alt":30.8,"az":296.5,"t":"2028-09-20T22:20:00Z","terrain":0.3},{"above_terrain":true,"airmass":2.0,"alt":29.96,"az":297.1,"t":"2028-09-20T22:25:00Z","terrain":0.25},{"above_terrain":true,"airmass":2.05,"alt":29.13,"az":297.7,"t":"2028-09-20T22:30:00Z","terrain":0.17},{"above_terrain":true,"airmass":2.1,"alt":28.3,"az":298.3,"t":"2028-09-20T22:35:00Z","terrain":0.13},{"above_terrain":true,"airmass":2.16,"alt":27.48,"az":298.9,"t":"2028-09-20T22:40:00Z","terrain":0.16},{"above_terrain":true,"airmass":2.22,"alt":26.67,"az":299.5,"t":"2028-09-20T22:45:00Z","terrain":0.26},{"above_terrain":true,"airmass":2.28,"alt":25.85,"az":300.1,"t":"2028-09-20T22:50:00Z","terrain":0.37},{"above_terrain":true,"airmass":2.35,"alt":25.05,"az":300.7,"t":"2028-09-20T22:55:00Z","terrain":0.34},{"above_terrain":true,"airmass":2.42,"alt":24.24,"az":301.3,"t":"2028-09-20T23:00:00Z","terrain":0.25},{"above_terrain":true,"airmass":2.5,"alt":23.45,"az":301.9,"t":"2028-09-20T23:05:00Z","terrain":0.1},{"above_terrain":true,"airmass":2.58,"alt":22.65,"az":302.5,"t":"2028-09-20T23:10:00Z","terrain":-0.08},{"above_terrain":true,"airmass":2.67,"alt":21.87,"az":303.2,"t":"2028-09-20T23:15:00Z","terrain":-0.21},{"above_terrain":true,"airmass":2.76,"alt":21.09,"az":303.8,"t":"2028-09-20T23:20:00Z","terrain":-0.13},{"above_terrain":true,"airmass":2.86,"alt":20.31,"az":304.4,"t":"2028-09-20T23:25:00Z","terrain":-0.18},{"above_terrain":true,"airmass":2.97,"alt":19.54,"az":305.1,"t":"2028-09-20T23:30:00Z","terrain":-0.28},{"above_terrain":true,"airmass":3.08,"alt":18.78,"az":305.7,"t":"2028-09-20T23:35:00Z","terrain":-0.21},{"above_terrain":true,"airmass":3.2,"alt":18.02,"az":306.4,"t":"2028-09-20T23:40:00Z","terrain":-0.05},{"above_terrain":true,"airmass":3.34,"alt":17.27,"az":307.0,"t":"2028-09-20T23:45:00Z","terrain":0.18},{"above_terrain":true,"airmass":3.48,"alt":16.53,"az":307.7,"t":"2028-09-20T23:50:00Z","terrain":0.27},{"above_terrain":true,"airmass":3.63,"alt":15.79,"az":308.3,"t":"2028-09-20T23:55:00Z","terrain":0.27},{"above_terrain":true,"airmass":3.8,"alt":15.06,"az":309.0,"t":"2028-09-21T00:00:00Z","terrain":0.17},{"above_terrain":true,"airmass":3.98,"alt":14.34,"az":309.7,"t":"2028-09-21T00:05:00Z","terrain":0.2},{"above_terrain":true,"airmass":4.18,"alt":13.62,"az":310.4,"t":"2028-09-21T00:10:00Z","terrain":0.27},{"above_terrain":true,"airmass":4.4,"alt":12.91,"az":311.1,"t":"2028-09-21T00:15:00Z","terrain":0.35},{"above_terrain":true,"airmass":4.63,"alt":12.21,"az":311.8,"t":"2028-09-21T00:20:00Z","terrain":0.19},{"above_terrain":true,"airmass":4.9,"alt":11.51,"az":312.5,"t":"2028-09-21T00:25:00Z","terrain":0.2},{"above_terrain":true,"airmass":5.19,"alt":10.83,"az":313.2,"t":"2028-09-21T00:30:00Z","terrain":0.3},{"above_terrain":true,"airmass":5.51,"alt":10.15,"az":313.9,"t":"2028-09-21T00:35:00Z","terrain":0.45},{"above_terrain":true,"airmass":5.87,"alt":9.48,"az":314.6,"t":"2028-09-21T00:40:00Z","terrain":0.52},{"above_terrain":true,"airmass":6.28,"alt":8.82,"az":315.3,"t":"2028-09-21T00:45:00Z","terrain":0.53},{"above_terrain":true,"airmass":6.73,"alt":8.16,"az":316.1,"t":"2028-09-21T00:50:00Z","terrain":0.47},{"above_terrain":true,"airmass":7.25,"alt":7.52,"az":316.8,"t":"2028-09-21T00:55:00Z","terrain":0.33},{"above_terrain":true,"airmass":7.85,"alt":6.88,"az":317.6,"t":"2028-09-21T01:00:00Z","terrain":0.32},{"above_terrain":true,"airmass":8.53,"alt":6.25,"az":318.3,"t":"2028-09-21T01:05:00Z","terrain":0.19},{"above_terrain":true,"airmass":9.33,"alt":5.64,"az":319.1,"t":"2028-09-21T01:10:00Z","terrain":-0.14},{"above_terrain":true,"airmass":10.26,"alt":5.03,"az":319.8,"t":"2028-09-21T01:15:00Z","terrain":-0.19},{"above_terrain":true,"airmass":11.36,"alt":4.43,"az":320.6,"t":"2028-09-21T01:20:00Z","terrain":-0.2},{"above_terrain":true,"airmass":12.69,"alt":3.84,"az":321.4,"t":"2028-09-21T01:25:00Z","terrain":-0.04},{"above_terrain":true,"airmass":14.3,"alt":3.26,"az":322.2,"t":"2028-09-21T01:30:00Z","terrain":0.19},{"above_terrain":true,"airmass":16.28,"alt":2.69,"az":323.0,"t":"2028-09-21T01:35:00Z","terrain":0.08},{"above_terrain":true,"airmass":18.74,"alt":2.13,"az":323.8,"t":"2028-09-21T01:40:00Z","terrain":-0.15},{"above_terrain":true,"airmass":21.87,"alt":1.59,"az":324.6,"t":"2028-09-21T01:45:00Z","terrain":-0.2},{"above_terrain":true,"airmass":25.88,"alt":1.05,"az":325.4,"t":"2028-09-21T01:50:00Z","terrain":-0.21},{"above_terrain":true,"airmass":31.09,"alt":0.52,"az":326.2,"t":"2028-09-21T01:55:00Z","terrain":-0.27},{"above_terrain":true,"airmass":37.79,"alt":0.01,"az":327.1,"t":"2028-09-21T02:00:00Z","terrain":-0.38},{"above_terrain":false,"airmass":null,"alt":-0.49,"az":327.9,"t":"2028-09-21T02:05:00Z","terrain":-0.25},{"above_terrain":false,"airmass":null,"alt":-0.99,"az":328.7,"t":"2028-09-21T02:10:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-1.47,"az":329.6,"t":"2028-09-21T02:15:00Z","terrain":-0.26},{"above_terrain":false,"airmass":null,"alt":-1.93,"az":330.4,"t":"2028-09-21T02:20:00Z","terrain":-0.37},{"above_terrain":false,"airmass":null,"alt":-2.39,"az":331.3,"t":"2028-09-21T02:25:00Z","terrain":-0.31},{"above_terrain":false,"airmass":null,"alt":-2.83,"az":332.2,"t":"2028-09-21T02:30:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-3.26,"az":333.1,"t":"2028-09-21T02:35:00Z","terrain":-0.13},{"above_terrain":false,"airmass":null,"alt":-3.68,"az":333.9,"t":"2028-09-21T02:40:00Z","terrain":-0.22},{"above_terrain":false,"airmass":null,"alt":-4.09,"az":334.8,"t":"2028-09-21T02:45:00Z","terrain":-0.53},{"above_terrain":false,"airmass":null,"alt":-4.48,"az":335.7,"t":"2028-09-21T02:50:00Z","terrain":-0.77},{"above_terrain":false,"airmass":null,"alt":-4.85,"az":336.6,"t":"2028-09-21T02:55:00Z","terrain":-0.77},{"above_terrain":false,"airmass":null,"alt":-5.22,"az":337.5,"t":"2028-09-21T03:00:00Z","terrain":-0.59},{"above_terrain":false,"airmass":null,"alt":-5.57,"az":338.5,"t":"2028-09-21T03:05:00Z","terrain":-0.6},{"above_terrain":false,"airmass":null,"alt":-5.91,"az":339.4,"t":"2028-09-21T03:10:00Z","terrain":-0.67},{"above_terrain":false,"airmass":null,"alt":-6.23,"az":340.3,"t":"2028-09-21T03:15:00Z","terrain":-0.5},{"above_terrain":false,"airmass":null,"alt":-6.54,"az":341.2,"t":"2028-09-21T03:20:00Z","terrain":-0.45},{"above_terrain":false,"airmass":null,"alt":-6.83,"az":342.2,"t":"2028-09-21T03:25:00Z","terrain":-0.47},{"above_terrain":false,"airmass":null,"alt":-7.11,"az":343.1,"t":"2028-09-21T03:30:00Z","terrain":-0.39},{"above_terrain":false,"airmass":null,"alt":-7.37,"az":344.1,"t":"2028-09-21T03:35:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-7.62,"az":345.0,"t":"2028-09-21T03:40:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-7.86,"az":346.0,"t":"2028-09-21T03:45:00Z","terrain":-0.55},{"above_terrain":false,"airmass":null,"alt":-8.08,"az":346.9,"t":"2028-09-21T03:50:00Z","terrain":-0.43},{"above_terrain":false,"airmass":null,"alt":-8.28,"az":347.9,"t":"2028-09-21T03:55:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-8.47,"az":348.9,"t":"2028-09-21T04:00:00Z","terrain":-0.02},{"above_terrain":false,"airmass":null,"alt":-8.64,"az":349.8,"t":"2028-09-21T04:05:00Z","terrain":0.12},{"above_terrain":false,"airmass":null,"alt":-8.8,"az":350.8,"t":"2028-09-21T04:10:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-8.94,"az":351.8,"t":"2028-09-21T04:15:00Z","terrain":0.24},{"above_terrain":false,"airmass":null,"alt":-9.07,"az":352.8,"t":"2028-09-21T04:20:00Z","terrain":0.45},{"above_terrain":false,"airmass":null,"alt":-9.18,"az":353.8,"t":"2028-09-21T04:25:00Z","terrain":0.59},{"above_terrain":false,"airmass":null,"alt":-9.27,"az":354.7,"t":"2028-09-21T04:30:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-9.35,"az":355.7,"t":"2028-09-21T04:35:00Z","terrain":0.72},{"above_terrain":false,"airmass":null,"alt":-9.41,"az":356.7,"t":"2028-09-21T04:40:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-9.45,"az":357.7,"t":"2028-09-21T04:45:00Z","terrain":0.66},{"above_terrain":false,"airmass":null,"alt":-9.48,"az":358.7,"t":"2028-09-21T04:50:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-9.5,"az":359.7,"t":"2028-09-21T04:55:00Z","terrain":0.54},{"above_terrain":false,"airmass":null,"alt":-9.49,"az":0.7,"t":"2028-09-21T05:00:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-9.47,"az":1.7,"t":"2028-09-21T05:05:00Z","terrain":0.2},{"above_terrain":false,"airmass":null,"alt":-9.44,"az":2.7,"t":"2028-09-21T05:10:00Z","terrain":-0.05},{"above_terrain":false,"airmass":null,"alt":-9.39,"az":3.6,"t":"2028-09-21T05:15:00Z","terrain":-0.23},{"above_terrain":false,"airmass":null,"alt":-9.32,"az":4.6,"t":"2028-09-21T05:20:00Z","terrain":-0.38},{"above_terrain":false,"airmass":null,"alt":-9.24,"az":5.6,"t":"2028-09-21T05:25:00Z","terrain":-0.53},{"above_terrain":false,"airmass":null,"alt":-9.14,"az":6.6,"t":"2028-09-21T05:30:00Z","terrain":-0.48},{"above_terrain":false,"airmass":null,"alt":-9.02,"az":7.6,"t":"2028-09-21T05:35:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-8.89,"az":8.6,"t":"2028-09-21T05:40:00Z","terrain":-0.55},{"above_terrain":false,"airmass":null,"alt":-8.74,"az":9.5,"t":"2028-09-21T05:45:00Z","terrain":-0.63},{"above_terrain":false,"airmass":null,"alt":-8.58,"az":10.5,"t":"2028-09-21T05:50:00Z","terrain":-0.5},{"above_terrain":false,"airmass":null,"alt":-8.4,"az":11.5,"t":"2028-09-21T05:55:00Z","terrain":-0.29},{"above_terrain":false,"airmass":null,"alt":-8.21,"az":12.5,"t":"2028-09-21T06:00:00Z","terrain":-0.13},{"above_terrain":false,"airmass":null,"alt":-8.0,"az":13.4,"t":"2028-09-21T06:05:00Z","terrain":-0.0},{"above_terrain":false,"airmass":null,"alt":-7.77,"az":14.4,"t":"2028-09-21T06:10:00Z","terrain":0.21},{"above_terrain":false,"airmass":null,"alt":-7.53,"az":15.3,"t":"2028-09-21T06:15:00Z","terrain":0.44},{"above_terrain":false,"airmass":null,"alt":-7.28,"az":16.3,"t":"2028-09-21T06:20:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-7.01,"az":17.2,"t":"2028-09-21T06:25:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-6.72,"az":18.2,"t":"2028-09-21T06:30:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-6.42,"az":19.1,"t":"2028-09-21T06:35:00Z","terrain":0.63},{"above_terrain":false,"airmass":null,"alt":-6.11,"az":20.0,"t":"2028-09-21T06:40:00Z","terrain":0.67},{"above_terrain":false,"airmass":null,"alt":-5.78,"az":21.0,"t":"2028-09-21T06:45:00Z","terrain":0.69},{"above_terrain":false,"airmass":null,"alt":-5.44,"az":21.9,"t":"2028-09-21T06:50:00Z","terrain":0.96},{"above_terrain":false,"airmass":null,"alt":-5.08,"az":22.8,"t":"2028-09-21T06:55:00Z","terrain":1.13},{"above_terrain":false,"airmass":null,"alt":-4.71,"az":23.7,"t":"2028-09-21T07:00:00Z","terrain":0.99},{"above_terrain":false,"airmass":null,"alt":-4.33,"az":24.6,"t":"2028-09-21T07:05:00Z","terrain":1.1},{"above_terrain":false,"airmass":null,"alt":-3.93,"az":25.5,"t":"2028-09-21T07:10:00Z","terrain":1.28},{"above_terrain":false,"airmass":null,"alt":-3.52,"az":26.4,"t":"2028-09-21T07:15:00Z","terrain":1.32},{"above_terrain":false,"airmass":null,"alt":-3.1,"az":27.3,"t":"2028-09-21T07:20:00Z","terrain":1.26},{"above_terrain":false,"airmass":null,"alt":-2.67,"az":28.1,"t":"2028-09-21T07:25:00Z","terrain":1.16},{"above_terrain":false,"airmass":null,"alt":-2.22,"az":29.0,"t":"2028-09-21T07:30:00Z","terrain":1.0},{"above_terrain":false,"airmass":null,"alt":-1.76,"az":29.9,"t":"2028-09-21T07:35:00Z","terrain":1.13},{"above_terrain":false,"airmass":null,"alt":-1.29,"az":30.7,"t":"2028-09-21T07:40:00Z","terrain":1.27},{"above_terrain":false,"airmass":null,"alt":-0.8,"az":31.6,"t":"2028-09-21T07:45:00Z","terrain":1.32},{"above_terrain":false,"airmass":null,"alt":-0.31,"az":32.4,"t":"2028-09-21T07:50:00Z","terrain":1.19},{"above_terrain":false,"airmass":35.07,"alt":0.2,"az":33.3,"t":"2028-09-21T07:55:00Z","terrain":0.84},{"above_terrain":true,"airmass":28.97,"alt":0.72,"az":34.1,"t":"2028-09-21T08:00:00Z","terrain":0.4},{"above_terrain":true,"airmass":24.25,"alt":1.25,"az":34.9,"t":"2028-09-21T08:05:00Z","terrain":0.09},{"above_terrain":true,"airmass":20.6,"alt":1.79,"az":35.7,"t":"2028-09-21T08:10:00Z","terrain":0.04},{"above_terrain":true,"airmass":17.75,"alt":2.34,"az":36.5,"t":"2028-09-21T08:15:00Z","terrain":-0.03},{"above_terrain":true,"airmass":15.48,"alt":2.91,"az":37.3,"t":"2028-09-21T08:20:00Z","terrain":-0.13},{"above_terrain":true,"airmass":13.65,"alt":3.48,"az":38.1,"t":"2028-09-21T08:25:00Z","terrain":-0.2},{"above_terrain":true,"airmass":12.16,"alt":4.06,"az":38.9,"t":"2028-09-21T08:30:00Z","terrain":-0.16},{"above_terrain":true,"airmass":10.93,"alt":4.65,"az":39.7,"t":"2028-09-21T08:35:00Z","terrain":-0.08},{"above_terrain":true,"airmass":9.89,"alt":5.26,"az":40.5,"t":"2028-09-21T08:40:00Z","terrain":-0.02},{"above_terrain":true,"airmass":9.01,"alt":5.87,"az":41.2,"t":"2028-09-21T08:45:00Z","terrain":0.04},{"above_terrain":true,"airmass":8.26,"alt":6.49,"az":42.0,"t":"2028-09-21T08:50:00Z","terrain":0.12},{"above_terrain":true,"airmass":7.61,"alt":7.12,"az":42.7,"t":"2028-09-21T08:55:00Z","terrain":0.21},{"above_terrain":true,"airmass":7.05,"alt":7.76,"az":43.5,"t":"2028-09-21T09:00:00Z","terrain":0.33}],"transit":{"airmass":1.0,"alt":87.1,"az":185.7,"t":"2028-09-20T17:00:00Z"},"usable_hours":5.58,"verdict":"good","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."]}