{"assessment":{"best_window":{"end":"2028-05-21T01:00Z","end_local":"04:00","hours":0.5,"label":"marginal","mean_quality":0.48,"start":"2028-05-21T00:30Z","start_local":"03:30"},"cost":{"altitude":5.69,"clouds":0.0,"darkness":1.25,"moon":0.02},"formula":"astronomy = 100 * min(1, sky_hours / reference_hours) * peak_sky; overall = astronomy * score_weather / 100 (null when the weather is unknown)","hard_limit":null,"headline":"Astronomically barely \u2014 weather unknown","hourly":[{"alt":-5,"cloud":null,"high":null,"iso":"2028-05-20T18:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-34,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"21:00","wind":null},{"alt":-7,"cloud":null,"high":null,"iso":"2028-05-20T19:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-37,"precip":null,"q":0.0,"rh":null,"sky":"astronomical twilight","temp":null,"time":"22:00","wind":null},{"alt":-6,"cloud":null,"high":null,"iso":"2028-05-20T20:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-37,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":-3,"cloud":null,"high":null,"iso":"2028-05-20T21:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-33,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":2,"cloud":null,"high":null,"iso":"2028-05-20T22:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-27,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":8,"cloud":null,"high":null,"iso":"2028-05-20T23:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-18,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":16,"cloud":null,"high":null,"iso":"2028-05-21T00:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-9,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":25,"cloud":null,"high":null,"iso":"2028-05-21T01:00Z","label":"poor","low":null,"mid":null,"moon_alt":1,"precip":null,"q":0.28,"rh":null,"sky":"astronomical twilight","temp":null,"time":"04:00","wind":null},{"alt":34,"cloud":null,"high":null,"iso":"2028-05-21T02:00Z","label":"poor","low":null,"mid":null,"moon_alt":12,"precip":null,"q":0.12,"rh":null,"sky":"nautical twilight","temp":null,"time":"05:00","wind":null}],"peak_quality":0.53,"peak_sky":0.53,"quality_hours":0.57,"reasons":["the target being low or below 20\u00b0 cost 5.7 quality-hours","daylight and twilight cost 1.2 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":8,"score_weather":null,"sky_hours":0.57,"verdict":"unknown","verdict_astronomy":"poor","weather_known":false,"windows":[{"end":"2028-05-21T00:30Z","end_local":"03:30","hours":6.92,"label":"unusable","mean_quality":0.0,"start":"2028-05-20T17:35Z","start_local":"20:35"},{"end":"2028-05-21T01:00Z","end_local":"04:00","hours":0.5,"label":"marginal","mean_quality":0.48,"start":"2028-05-21T00:30Z","start_local":"03:30"},{"end":"2028-05-21T01:10Z","end_local":"04:10","hours":0.17,"label":"poor","mean_quality":0.29,"start":"2028-05-21T01:00Z","start_local":"04:00"},{"end":"2028-05-21T01:45Z","end_local":"04:45","hours":0.58,"label":"marginal","mean_quality":0.35,"start":"2028-05-21T01:10Z","start_local":"04:10"},{"end":"2028-05-21T02:25Z","end_local":"05:25","hours":0.67,"label":"poor","mean_quality":0.12,"start":"2028-05-21T01:45Z","start_local":"04:45"},{"end":"2028-05-21T03:00Z","end_local":"06:00","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2028-05-21T02:25Z","start_local":"05:25"}]},"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":"2028-05-20T19:38:42Z","dark_hours":5.29,"dark_to":"2028-05-21T00:56:19Z","moon":{"illumination":0.122,"phase":"waning crescent","waxing":false},"moon_free_dark_hours":5.23,"moonrise":"2028-05-21T00:53:25Z","moonset":"2028-05-20T13:48:06Z","sunrise":"2028-05-21T02:55:47Z","sunset":"2028-05-20T17:39:13Z","twilight":{"astronomical":{"end":"2028-05-20T19:38:42Z","start":"2028-05-21T00:56:19Z"},"civil":{"end":"2028-05-20T18:11:35Z","start":"2028-05-21T02:23:25Z"},"nautical":{"end":"2028-05-20T18:52:15Z","start":"2028-05-21T01:42:45Z"}},"window_end":"2028-05-21T09:00:00Z","window_start":"2028-05-20T09:00:00Z"},"night_date":"2028-05-20","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":2.45,"alt":24.0,"t":"2028-05-21T00:55:00Z"},"dec":41.26875,"dec_of_date":41.4239,"dec_str":"+41\u00b0 16' 07.5\"","good_hours":0,"limit_rise":"2028-05-21T00:28:16Z","limit_set":"2028-05-20T13:50:43Z","max_az_rate_deg_per_min":24.14,"moon_separation":29.2,"never_rises":false,"ra":10.68470833,"ra_of_date":11.0746,"ra_str":"00h 42m 44.3s","resolved":{"common_name":"Andromeda Galaxy","dec":41.26875,"morphology":"SA(s)b","name":"M 31","ra":10.68470833,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M31","source":"sesame","type":"AGN","type_text":"galaxy with an active nucleus","vmag":3.44},"summary":"Just 0.5 h above 20\u00b0 in darkness \u2014 barely observable tonight.","terrain":{"available":true,"behind_at":"2028-05-20T16:38:38Z","blocked_dark_hours":0,"clears_at":"2028-05-20T21:54:04Z","rise_az":278.4},"track":[{"above_terrain":true,"airmass":1.07,"alt":69.72,"az":278.4,"t":"2028-05-20T09:00:00Z","terrain":-0.06},{"above_terrain":true,"airmass":1.07,"alt":68.8,"az":278.8,"t":"2028-05-20T09:05:00Z","terrain":-0.03},{"above_terrain":true,"airmass":1.08,"alt":67.87,"az":279.3,"t":"2028-05-20T09:10:00Z","terrain":-0.05},{"above_terrain":true,"airmass":1.09,"alt":66.95,"az":279.8,"t":"2028-05-20T09:15:00Z","terrain":-0.1},{"above_terrain":true,"airmass":1.09,"alt":66.03,"az":280.2,"t":"2028-05-20T09:20:00Z","terrain":-0.09},{"above_terrain":true,"airmass":1.1,"alt":65.11,"az":280.7,"t":"2028-05-20T09:25:00Z","terrain":-0.02},{"above_terrain":true,"airmass":1.11,"alt":64.19,"az":281.1,"t":"2028-05-20T09:30:00Z","terrain":0.01},{"above_terrain":true,"airmass":1.12,"alt":63.27,"az":281.6,"t":"2028-05-20T09:35:00Z","terrain":-0.07},{"above_terrain":true,"airmass":1.13,"alt":62.36,"az":282.1,"t":"2028-05-20T09:40:00Z","terrain":-0.12},{"above_terrain":true,"airmass":1.14,"alt":61.44,"az":282.5,"t":"2028-05-20T09:45:00Z","terrain":-0.07},{"above_terrain":true,"airmass":1.15,"alt":60.53,"az":283.0,"t":"2028-05-20T09:50:00Z","terrain":-0.01},{"above_terrain":true,"airmass":1.16,"alt":59.62,"az":283.4,"t":"2028-05-20T09:55:00Z","terrain":0.05},{"above_terrain":true,"airmass":1.17,"alt":58.71,"az":283.9,"t":"2028-05-20T10:00:00Z","terrain":0.11},{"above_terrain":true,"airmass":1.18,"alt":57.8,"az":284.4,"t":"2028-05-20T10:05:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.19,"alt":56.9,"az":284.8,"t":"2028-05-20T10:10:00Z","terrain":0.21},{"above_terrain":true,"airmass":1.21,"alt":55.99,"az":285.3,"t":"2028-05-20T10:15:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.22,"alt":55.09,"az":285.8,"t":"2028-05-20T10:20:00Z","terrain":0.22},{"above_terrain":true,"airmass":1.23,"alt":54.19,"az":286.2,"t":"2028-05-20T10:25:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.25,"alt":53.29,"az":286.7,"t":"2028-05-20T10:30:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.26,"alt":52.4,"az":287.2,"t":"2028-05-20T10:35:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.28,"alt":51.5,"az":287.7,"t":"2028-05-20T10:40:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.29,"alt":50.61,"az":288.1,"t":"2028-05-20T10:45:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.31,"alt":49.73,"az":288.6,"t":"2028-05-20T10:50:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.33,"alt":48.84,"az":289.1,"t":"2028-05-20T10:55:00Z","terrain":0.19},{"above_terrain":true,"airmass":1.35,"alt":47.96,"az":289.6,"t":"2028-05-20T11:00:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.36,"alt":47.08,"az":290.1,"t":"2028-05-20T11:05:00Z","terrain":0.31},{"above_terrain":true,"airmass":1.38,"alt":46.2,"az":290.6,"t":"2028-05-20T11:10:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.4,"alt":45.32,"az":291.1,"t":"2028-05-20T11:15:00Z","terrain":0.49},{"above_terrain":true,"airmass":1.43,"alt":44.45,"az":291.6,"t":"2028-05-20T11:20:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.45,"alt":43.58,"az":292.1,"t":"2028-05-20T11:25:00Z","terrain":0.54},{"above_terrain":true,"airmass":1.47,"alt":42.72,"az":292.6,"t":"2028-05-20T11:30:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.5,"alt":41.85,"az":293.1,"t":"2028-05-20T11:35:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.52,"alt":40.99,"az":293.6,"t":"2028-05-20T11:40:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.55,"alt":40.14,"az":294.1,"t":"2028-05-20T11:45:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.58,"alt":39.29,"az":294.6,"t":"2028-05-20T11:50:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.61,"alt":38.44,"az":295.1,"t":"2028-05-20T11:55:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.64,"alt":37.59,"az":295.6,"t":"2028-05-20T12:00:00Z","terrain":0.29},{"above_terrain":true,"airmass":1.67,"alt":36.75,"az":296.1,"t":"2028-05-20T12:05:00Z","terrain":0.32},{"above_terrain":true,"airmass":1.7,"alt":35.91,"az":296.7,"t":"2028-05-20T12:10:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.74,"alt":35.08,"az":297.2,"t":"2028-05-20T12:15:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.77,"alt":34.25,"az":297.7,"t":"2028-05-20T12:20:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.81,"alt":33.42,"az":298.3,"t":"2028-05-20T12:25:00Z","terrain":0.13},{"above_terrain":true,"airmass":1.85,"alt":32.6,"az":298.8,"t":"2028-05-20T12:30:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.89,"alt":31.78,"az":299.4,"t":"2028-05-20T12:35:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.94,"alt":30.97,"az":299.9,"t":"2028-05-20T12:40:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.98,"alt":30.16,"az":300.5,"t":"2028-05-20T12:45:00Z","terrain":0.35},{"above_terrain":true,"airmass":2.03,"alt":29.35,"az":301.0,"t":"2028-05-20T12:50:00Z","terrain":0.31},{"above_terrain":true,"airmass":2.09,"alt":28.55,"az":301.6,"t":"2028-05-20T12:55:00Z","terrain":0.18},{"above_terrain":true,"airmass":2.14,"alt":27.76,"az":302.2,"t":"2028-05-20T13:00:00Z","terrain":0.03},{"above_terrain":true,"airmass":2.2,"alt":26.97,"az":302.7,"t":"2028-05-20T13:05:00Z","terrain":-0.15},{"above_terrain":true,"airmass":2.26,"alt":26.18,"az":303.3,"t":"2028-05-20T13:10:00Z","terrain":-0.19},{"above_terrain":true,"airmass":2.32,"alt":25.4,"az":303.9,"t":"2028-05-20T13:15:00Z","terrain":-0.11},{"above_terrain":true,"airmass":2.39,"alt":24.63,"az":304.5,"t":"2028-05-20T13:20:00Z","terrain":-0.19},{"above_terrain":true,"airmass":2.46,"alt":23.86,"az":305.1,"t":"2028-05-20T13:25:00Z","terrain":-0.28},{"above_terrain":true,"airmass":2.54,"alt":23.1,"az":305.7,"t":"2028-05-20T13:30:00Z","terrain":-0.21},{"above_terrain":true,"airmass":2.62,"alt":22.34,"az":306.3,"t":"2028-05-20T13:35:00Z","terrain":-0.07},{"above_terrain":true,"airmass":2.7,"alt":21.59,"az":306.9,"t":"2028-05-20T13:40:00Z","terrain":0.14},{"above_terrain":true,"airmass":2.79,"alt":20.84,"az":307.5,"t":"2028-05-20T13:45:00Z","terrain":0.25},{"above_terrain":true,"airmass":2.89,"alt":20.11,"az":308.1,"t":"2028-05-20T13:50:00Z","terrain":0.3},{"above_terrain":true,"airmass":2.99,"alt":19.37,"az":308.8,"t":"2028-05-20T13:55:00Z","terrain":0.21},{"above_terrain":true,"airmass":3.1,"alt":18.65,"az":309.4,"t":"2028-05-20T14:00:00Z","terrain":0.19},{"above_terrain":true,"airmass":3.22,"alt":17.93,"az":310.0,"t":"2028-05-20T14:05:00Z","terrain":0.22},{"above_terrain":true,"airmass":3.35,"alt":17.21,"az":310.7,"t":"2028-05-20T14:10:00Z","terrain":0.31},{"above_terrain":true,"airmass":3.48,"alt":16.51,"az":311.3,"t":"2028-05-20T14:15:00Z","terrain":0.29},{"above_terrain":true,"airmass":3.63,"alt":15.81,"az":312.0,"t":"2028-05-20T14:20:00Z","terrain":0.15},{"above_terrain":true,"airmass":3.79,"alt":15.11,"az":312.6,"t":"2028-05-20T14:25:00Z","terrain":0.22},{"above_terrain":true,"airmass":3.96,"alt":14.43,"az":313.3,"t":"2028-05-20T14:30:00Z","terrain":0.33},{"above_terrain":true,"airmass":4.14,"alt":13.75,"az":314.0,"t":"2028-05-20T14:35:00Z","terrain":0.46},{"above_terrain":true,"airmass":4.34,"alt":13.08,"az":314.6,"t":"2028-05-20T14:40:00Z","terrain":0.53},{"above_terrain":true,"airmass":4.56,"alt":12.42,"az":315.3,"t":"2028-05-20T14:45:00Z","terrain":0.53},{"above_terrain":true,"airmass":4.8,"alt":11.77,"az":316.0,"t":"2028-05-20T14:50:00Z","terrain":0.48},{"above_terrain":true,"airmass":5.06,"alt":11.12,"az":316.7,"t":"2028-05-20T14:55:00Z","terrain":0.35},{"above_terrain":true,"airmass":5.35,"alt":10.48,"az":317.4,"t":"2028-05-20T15:00:00Z","terrain":0.31},{"above_terrain":true,"airmass":5.66,"alt":9.85,"az":318.1,"t":"2028-05-20T15:05:00Z","terrain":0.27},{"above_terrain":true,"airmass":6.01,"alt":9.23,"az":318.8,"t":"2028-05-20T15:10:00Z","terrain":-0.07},{"above_terrain":true,"airmass":6.41,"alt":8.62,"az":319.6,"t":"2028-05-20T15:15:00Z","terrain":-0.17},{"above_terrain":true,"airmass":6.84,"alt":8.02,"az":320.3,"t":"2028-05-20T15:20:00Z","terrain":-0.2},{"above_terrain":true,"airmass":7.33,"alt":7.43,"az":321.0,"t":"2028-05-20T15:25:00Z","terrain":-0.19},{"above_terrain":true,"airmass":7.89,"alt":6.84,"az":321.8,"t":"2028-05-20T15:30:00Z","terrain":0.12},{"above_terrain":true,"airmass":8.52,"alt":6.27,"az":322.5,"t":"2028-05-20T15:35:00Z","terrain":0.14},{"above_terrain":true,"airmass":9.23,"alt":5.7,"az":323.3,"t":"2028-05-20T15:40:00Z","terrain":0.0},{"above_terrain":true,"airmass":10.06,"alt":5.15,"az":324.0,"t":"2028-05-20T15:45:00Z","terrain":-0.21},{"above_terrain":true,"airmass":11.02,"alt":4.6,"az":324.8,"t":"2028-05-20T15:50:00Z","terrain":-0.19},{"above_terrain":true,"airmass":12.14,"alt":4.07,"az":325.6,"t":"2028-05-20T15:55:00Z","terrain":-0.22},{"above_terrain":true,"airmass":13.46,"alt":3.54,"az":326.4,"t":"2028-05-20T16:00:00Z","terrain":-0.29},{"above_terrain":true,"airmass":15.04,"alt":3.03,"az":327.2,"t":"2028-05-20T16:05:00Z","terrain":-0.37},{"above_terrain":true,"airmass":16.93,"alt":2.53,"az":327.9,"t":"2028-05-20T16:10:00Z","terrain":-0.24},{"above_terrain":true,"airmass":19.23,"alt":2.04,"az":328.7,"t":"2028-05-20T16:15:00Z","terrain":-0.16},{"above_terrain":true,"airmass":22.05,"alt":1.56,"az":329.6,"t":"2028-05-20T16:20:00Z","terrain":-0.25},{"above_terrain":true,"airmass":25.54,"alt":1.09,"az":330.4,"t":"2028-05-20T16:25:00Z","terrain":-0.36},{"above_terrain":true,"airmass":29.87,"alt":0.63,"az":331.2,"t":"2028-05-20T16:30:00Z","terrain":-0.34},{"above_terrain":true,"airmass":35.25,"alt":0.19,"az":332.0,"t":"2028-05-20T16:35:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-0.24,"az":332.9,"t":"2028-05-20T16:40:00Z","terrain":-0.12},{"above_terrain":false,"airmass":null,"alt":-0.67,"az":333.7,"t":"2028-05-20T16:45:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-1.07,"az":334.5,"t":"2028-05-20T16:50:00Z","terrain":-0.43},{"above_terrain":false,"airmass":null,"alt":-1.47,"az":335.4,"t":"2028-05-20T16:55:00Z","terrain":-0.68},{"above_terrain":false,"airmass":null,"alt":-1.85,"az":336.3,"t":"2028-05-20T17:00:00Z","terrain":-0.8},{"above_terrain":false,"airmass":null,"alt":-2.22,"az":337.1,"t":"2028-05-20T17:05:00Z","terrain":-0.7},{"above_terrain":false,"airmass":null,"alt":-2.58,"az":338.0,"t":"2028-05-20T17:10:00Z","terrain":-0.47},{"above_terrain":false,"airmass":null,"alt":-2.93,"az":338.9,"t":"2028-05-20T17:15:00Z","terrain":-0.71},{"above_terrain":false,"airmass":null,"alt":-3.26,"az":339.7,"t":"2028-05-20T17:20:00Z","terrain":-0.59},{"above_terrain":false,"airmass":null,"alt":-3.57,"az":340.6,"t":"2028-05-20T17:25:00Z","terrain":-0.47},{"above_terrain":false,"airmass":null,"alt":-3.88,"az":341.5,"t":"2028-05-20T17:30:00Z","terrain":-0.47},{"above_terrain":false,"airmass":null,"alt":-4.17,"az":342.4,"t":"2028-05-20T17:35:00Z","terrain":-0.45},{"above_terrain":false,"airmass":null,"alt":-4.44,"az":343.3,"t":"2028-05-20T17:40:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-4.7,"az":344.2,"t":"2028-05-20T17:45:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-4.95,"az":345.1,"t":"2028-05-20T17:50:00Z","terrain":-0.42},{"above_terrain":false,"airmass":null,"alt":-5.18,"az":346.0,"t":"2028-05-20T17:55:00Z","terrain":-0.54},{"above_terrain":false,"airmass":null,"alt":-5.4,"az":347.0,"t":"2028-05-20T18:00:00Z","terrain":-0.42},{"above_terrain":false,"airmass":null,"alt":-5.61,"az":347.9,"t":"2028-05-20T18:05:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-5.8,"az":348.8,"t":"2028-05-20T18:10:00Z","terrain":-0.03},{"above_terrain":false,"airmass":null,"alt":-5.97,"az":349.7,"t":"2028-05-20T18:15:00Z","terrain":0.1},{"above_terrain":false,"airmass":null,"alt":-6.13,"az":350.7,"t":"2028-05-20T18:20:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-6.27,"az":351.6,"t":"2028-05-20T18:25:00Z","terrain":0.22},{"above_terrain":false,"airmass":null,"alt":-6.4,"az":352.5,"t":"2028-05-20T18:30:00Z","terrain":0.4},{"above_terrain":false,"airmass":null,"alt":-6.52,"az":353.5,"t":"2028-05-20T18:35:00Z","terrain":0.56},{"above_terrain":false,"airmass":null,"alt":-6.61,"az":354.4,"t":"2028-05-20T18:40:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-6.7,"az":355.4,"t":"2028-05-20T18:45:00Z","terrain":0.67},{"above_terrain":false,"airmass":null,"alt":-6.77,"az":356.3,"t":"2028-05-20T18:50:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-6.82,"az":357.3,"t":"2028-05-20T18:55:00Z","terrain":0.72},{"above_terrain":false,"airmass":null,"alt":-6.86,"az":358.2,"t":"2028-05-20T19:00:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-6.88,"az":359.1,"t":"2028-05-20T19:05:00Z","terrain":0.6},{"above_terrain":false,"airmass":null,"alt":-6.88,"az":0.1,"t":"2028-05-20T19:10:00Z","terrain":0.49},{"above_terrain":false,"airmass":null,"alt":-6.87,"az":1.0,"t":"2028-05-20T19:15:00Z","terrain":0.36},{"above_terrain":false,"airmass":null,"alt":-6.85,"az":2.0,"t":"2028-05-20T19:20:00Z","terrain":0.12},{"above_terrain":false,"airmass":null,"alt":-6.81,"az":2.9,"t":"2028-05-20T19:25:00Z","terrain":-0.11},{"above_terrain":false,"airmass":null,"alt":-6.75,"az":3.9,"t":"2028-05-20T19:30:00Z","terrain":-0.26},{"above_terrain":false,"airmass":null,"alt":-6.68,"az":4.8,"t":"2028-05-20T19:35:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-6.6,"az":5.8,"t":"2028-05-20T19:40:00Z","terrain":-0.55},{"above_terrain":false,"airmass":null,"alt":-6.49,"az":6.7,"t":"2028-05-20T19:45:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-6.38,"az":7.6,"t":"2028-05-20T19:50:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-6.25,"az":8.6,"t":"2028-05-20T19:55:00Z","terrain":-0.55},{"above_terrain":false,"airmass":null,"alt":-6.1,"az":9.5,"t":"2028-05-20T20:00:00Z","terrain":-0.63},{"above_terrain":false,"airmass":null,"alt":-5.94,"az":10.4,"t":"2028-05-20T20:05:00Z","terrain":-0.51},{"above_terrain":false,"airmass":null,"alt":-5.76,"az":11.4,"t":"2028-05-20T20:10:00Z","terrain":-0.32},{"above_terrain":false,"airmass":null,"alt":-5.57,"az":12.3,"t":"2028-05-20T20:15:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-5.36,"az":13.2,"t":"2028-05-20T20:20:00Z","terrain":-0.04},{"above_terrain":false,"airmass":null,"alt":-5.14,"az":14.1,"t":"2028-05-20T20:25:00Z","terrain":0.13},{"above_terrain":false,"airmass":null,"alt":-4.9,"az":15.0,"t":"2028-05-20T20:30:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-4.65,"az":16.0,"t":"2028-05-20T20:35:00Z","terrain":0.49},{"above_terrain":false,"airmass":null,"alt":-4.39,"az":16.9,"t":"2028-05-20T20:40:00Z","terrain":0.47},{"above_terrain":false,"airmass":null,"alt":-4.11,"az":17.8,"t":"2028-05-20T20:45:00Z","terrain":0.52},{"above_terrain":false,"airmass":null,"alt":-3.82,"az":18.7,"t":"2028-05-20T20:50:00Z","terrain":0.59},{"above_terrain":false,"airmass":null,"alt":-3.51,"az":19.5,"t":"2028-05-20T20:55:00Z","terrain":0.65},{"above_terrain":false,"airmass":null,"alt":-3.19,"az":20.4,"t":"2028-05-20T21:00:00Z","terrain":0.68},{"above_terrain":false,"airmass":null,"alt":-2.86,"az":21.3,"t":"2028-05-20T21:05:00Z","terrain":0.78},{"above_terrain":false,"airmass":null,"alt":-2.51,"az":22.2,"t":"2028-05-20T21:10:00Z","terrain":1.02},{"above_terrain":false,"airmass":null,"alt":-2.15,"az":23.1,"t":"2028-05-20T21:15:00Z","terrain":1.15},{"above_terrain":false,"airmass":null,"alt":-1.78,"az":23.9,"t":"2028-05-20T21:20:00Z","terrain":0.94},{"above_terrain":false,"airmass":null,"alt":-1.39,"az":24.8,"t":"2028-05-20T21:25:00Z","terrain":1.15},{"above_terrain":false,"airmass":null,"alt":-0.99,"az":25.6,"t":"2028-05-20T21:30:00Z","terrain":1.3},{"above_terrain":false,"airmass":null,"alt":-0.58,"az":26.5,"t":"2028-05-20T21:35:00Z","terrain":1.31},{"above_terrain":false,"airmass":null,"alt":-0.16,"az":27.3,"t":"2028-05-20T21:40:00Z","terrain":1.25},{"above_terrain":false,"airmass":34.08,"alt":0.28,"az":28.1,"t":"2028-05-20T21:45:00Z","terrain":1.16},{"above_terrain":false,"airmass":28.93,"alt":0.72,"az":29.0,"t":"2028-05-20T21:50:00Z","terrain":1.01},{"above_terrain":true,"airmass":24.78,"alt":1.18,"az":29.8,"t":"2028-05-20T21:55:00Z","terrain":1.12},{"above_terrain":true,"airmass":21.44,"alt":1.65,"az":30.6,"t":"2028-05-20T22:00:00Z","terrain":1.25},{"above_terrain":true,"airmass":18.73,"alt":2.14,"az":31.4,"t":"2028-05-20T22:05:00Z","terrain":1.32},{"above_terrain":true,"airmass":16.52,"alt":2.63,"az":32.2,"t":"2028-05-20T22:10:00Z","terrain":1.26},{"above_terrain":true,"airmass":14.7,"alt":3.13,"az":33.0,"t":"2028-05-20T22:15:00Z","terrain":0.99},{"above_terrain":true,"airmass":13.18,"alt":3.65,"az":33.8,"t":"2028-05-20T22:20:00Z","terrain":0.54},{"above_terrain":true,"airmass":11.9,"alt":4.17,"az":34.6,"t":"2028-05-20T22:25:00Z","terrain":0.21},{"above_terrain":true,"airmass":10.82,"alt":4.71,"az":35.3,"t":"2028-05-20T22:30:00Z","terrain":0.04},{"above_terrain":true,"airmass":9.89,"alt":5.26,"az":36.1,"t":"2028-05-20T22:35:00Z","terrain":0.02},{"above_terrain":true,"airmass":9.08,"alt":5.81,"az":36.9,"t":"2028-05-20T22:40:00Z","terrain":-0.08},{"above_terrain":true,"airmass":8.38,"alt":6.38,"az":37.6,"t":"2028-05-20T22:45:00Z","terrain":-0.17},{"above_terrain":true,"airmass":7.77,"alt":6.96,"az":38.4,"t":"2028-05-20T22:50:00Z","terrain":-0.19},{"above_terrain":true,"airmass":7.23,"alt":7.54,"az":39.1,"t":"2028-05-20T22:55:00Z","terrain":-0.15},{"above_terrain":true,"airmass":6.75,"alt":8.14,"az":39.9,"t":"2028-05-20T23:00:00Z","terrain":-0.07},{"above_terrain":true,"airmass":6.32,"alt":8.74,"az":40.6,"t":"2028-05-20T23:05:00Z","terrain":-0.01},{"above_terrain":true,"airmass":5.94,"alt":9.36,"az":41.3,"t":"2028-05-20T23:10:00Z","terrain":0.05},{"above_terrain":true,"airmass":5.6,"alt":9.98,"az":42.0,"t":"2028-05-20T23:15:00Z","terrain":0.12},{"above_terrain":true,"airmass":5.29,"alt":10.61,"az":42.7,"t":"2028-05-20T23:20:00Z","terrain":0.21},{"above_terrain":true,"airmass":5.0,"alt":11.25,"az":43.4,"t":"2028-05-20T23:25:00Z","terrain":0.32},{"above_terrain":true,"airmass":4.75,"alt":11.9,"az":44.1,"t":"2028-05-20T23:30:00Z","terrain":0.43},{"above_terrain":true,"airmass":4.51,"alt":12.55,"az":44.8,"t":"2028-05-20T23:35:00Z","terrain":0.55},{"above_terrain":true,"airmass":4.3,"alt":13.22,"az":45.5,"t":"2028-05-20T23:40:00Z","terrain":0.62},{"above_terrain":true,"airmass":4.1,"alt":13.89,"az":46.2,"t":"2028-05-20T23:45:00Z","terrain":0.66},{"above_terrain":true,"airmass":3.92,"alt":14.57,"az":46.8,"t":"2028-05-20T23:50:00Z","terrain":0.62},{"above_terrain":true,"airmass":3.75,"alt":15.25,"az":47.5,"t":"2028-05-20T23:55:00Z","terrain":0.57},{"above_terrain":true,"airmass":3.6,"alt":15.95,"az":48.2,"t":"2028-05-21T00:00:00Z","terrain":0.51},{"above_terrain":true,"airmass":3.45,"alt":16.65,"az":48.8,"t":"2028-05-21T00:05:00Z","terrain":0.43},{"above_terrain":true,"airmass":3.32,"alt":17.35,"az":49.5,"t":"2028-05-21T00:10:00Z","terrain":0.41},{"above_terrain":true,"airmass":3.2,"alt":18.07,"az":50.1,"t":"2028-05-21T00:15:00Z","terrain":0.41},{"above_terrain":true,"airmass":3.08,"alt":18.79,"az":50.7,"t":"2028-05-21T00:20:00Z","terrain":0.5},{"above_terrain":true,"airmass":2.97,"alt":19.52,"az":51.4,"t":"2028-05-21T00:25:00Z","terrain":0.57},{"above_terrain":true,"airmass":2.87,"alt":20.25,"az":52.0,"t":"2028-05-21T00:30:00Z","terrain":0.63},{"above_terrain":true,"airmass":2.77,"alt":20.99,"az":52.6,"t":"2028-05-21T00:35:00Z","terrain":0.76},{"above_terrain":true,"airmass":2.68,"alt":21.74,"az":53.2,"t":"2028-05-21T00:40:00Z","terrain":0.88},{"above_terrain":true,"airmass":2.6,"alt":22.49,"az":53.8,"t":"2028-05-21T00:45:00Z","terrain":0.97},{"above_terrain":true,"airmass":2.52,"alt":23.25,"az":54.4,"t":"2028-05-21T00:50:00Z","terrain":1.03},{"above_terrain":true,"airmass":2.45,"alt":24.02,"az":55.0,"t":"2028-05-21T00:55:00Z","terrain":1.08},{"above_terrain":true,"airmass":2.37,"alt":24.79,"az":55.6,"t":"2028-05-21T01:00:00Z","terrain":1.06},{"above_terrain":true,"airmass":2.31,"alt":25.56,"az":56.2,"t":"2028-05-21T01:05:00Z","terrain":1.05},{"above_terrain":true,"airmass":2.25,"alt":26.34,"az":56.8,"t":"2028-05-21T01:10:00Z","terrain":1.07},{"above_terrain":true,"airmass":2.19,"alt":27.13,"az":57.4,"t":"2028-05-21T01:15:00Z","terrain":1.14},{"above_terrain":true,"airmass":2.13,"alt":27.92,"az":57.9,"t":"2028-05-21T01:20:00Z","terrain":1.24},{"above_terrain":true,"airmass":2.07,"alt":28.71,"az":58.5,"t":"2028-05-21T01:25:00Z","terrain":1.23},{"above_terrain":true,"airmass":2.02,"alt":29.51,"az":59.1,"t":"2028-05-21T01:30:00Z","terrain":1.21},{"above_terrain":true,"airmass":1.98,"alt":30.32,"az":59.6,"t":"2028-05-21T01:35:00Z","terrain":1.18},{"above_terrain":true,"airmass":1.93,"alt":31.13,"az":60.2,"t":"2028-05-21T01:40:00Z","terrain":1.15},{"above_terrain":true,"airmass":1.89,"alt":31.94,"az":60.7,"t":"2028-05-21T01:45:00Z","terrain":1.11},{"above_terrain":true,"airmass":1.84,"alt":32.76,"az":61.3,"t":"2028-05-21T01:50:00Z","terrain":1.07},{"above_terrain":true,"airmass":1.8,"alt":33.58,"az":61.8,"t":"2028-05-21T01:55:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.77,"alt":34.41,"az":62.4,"t":"2028-05-21T02:00:00Z","terrain":0.97},{"above_terrain":true,"airmass":1.73,"alt":35.24,"az":62.9,"t":"2028-05-21T02:05:00Z","terrain":0.92},{"above_terrain":true,"airmass":1.69,"alt":36.08,"az":63.4,"t":"2028-05-21T02:10:00Z","terrain":0.85},{"above_terrain":true,"airmass":1.66,"alt":36.92,"az":64.0,"t":"2028-05-21T02:15:00Z","terrain":0.78},{"above_terrain":true,"airmass":1.63,"alt":37.76,"az":64.5,"t":"2028-05-21T02:20:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.6,"alt":38.61,"az":65.0,"t":"2028-05-21T02:25:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.57,"alt":39.46,"az":65.5,"t":"2028-05-21T02:30:00Z","terrain":0.8},{"above_terrain":true,"airmass":1.54,"alt":40.31,"az":66.0,"t":"2028-05-21T02:35:00Z","terrain":0.83},{"above_terrain":true,"airmass":1.52,"alt":41.17,"az":66.5,"t":"2028-05-21T02:40:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.49,"alt":42.03,"az":67.0,"t":"2028-05-21T02:45:00Z","terrain":0.93},{"above_terrain":true,"airmass":1.47,"alt":42.89,"az":67.5,"t":"2028-05-21T02:50:00Z","terrain":0.96},{"above_terrain":true,"airmass":1.44,"alt":43.76,"az":68.0,"t":"2028-05-21T02:55:00Z","terrain":0.99},{"above_terrain":true,"airmass":1.42,"alt":44.63,"az":68.5,"t":"2028-05-21T03:00:00Z","terrain":1.02},{"above_terrain":true,"airmass":1.4,"alt":45.5,"az":69.0,"t":"2028-05-21T03:05:00Z","terrain":1.06},{"above_terrain":true,"airmass":1.38,"alt":46.37,"az":69.5,"t":"2028-05-21T03:10:00Z","terrain":1.14},{"above_terrain":true,"airmass":1.36,"alt":47.25,"az":70.0,"t":"2028-05-21T03:15:00Z","terrain":1.22},{"above_terrain":true,"airmass":1.34,"alt":48.13,"az":70.5,"t":"2028-05-21T03:20:00Z","terrain":1.24},{"above_terrain":true,"airmass":1.32,"alt":49.02,"az":71.0,"t":"2028-05-21T03:25:00Z","terrain":1.26},{"above_terrain":true,"airmass":1.31,"alt":49.9,"az":71.5,"t":"2028-05-21T03:30:00Z","terrain":1.23},{"above_terrain":true,"airmass":1.29,"alt":50.79,"az":72.0,"t":"2028-05-21T03:35:00Z","terrain":1.2},{"above_terrain":true,"airmass":1.27,"alt":51.68,"az":72.4,"t":"2028-05-21T03:40:00Z","terrain":1.11},{"above_terrain":true,"airmass":1.26,"alt":52.58,"az":72.9,"t":"2028-05-21T03:45:00Z","terrain":1.01},{"above_terrain":true,"airmass":1.24,"alt":53.47,"az":73.4,"t":"2028-05-21T03:50:00Z","terrain":0.89},{"above_terrain":true,"airmass":1.23,"alt":54.37,"az":73.8,"t":"2028-05-21T03:55:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.22,"alt":55.27,"az":74.3,"t":"2028-05-21T04:00:00Z","terrain":0.7},{"above_terrain":true,"airmass":1.2,"alt":56.17,"az":74.8,"t":"2028-05-21T04:05:00Z","terrain":0.65},{"above_terrain":true,"airmass":1.19,"alt":57.08,"az":75.3,"t":"2028-05-21T04:10:00Z","terrain":0.65},{"above_terrain":true,"airmass":1.18,"alt":57.98,"az":75.7,"t":"2028-05-21T04:15:00Z","terrain":0.69},{"above_terrain":true,"airmass":1.17,"alt":58.89,"az":76.2,"t":"2028-05-21T04:20:00Z","terrain":0.72},{"above_terrain":true,"airmass":1.16,"alt":59.8,"az":76.6,"t":"2028-05-21T04:25:00Z","terrain":0.71},{"above_terrain":true,"airmass":1.15,"alt":60.71,"az":77.1,"t":"2028-05-21T04:30:00Z","terrain":0.69},{"above_terrain":true,"airmass":1.14,"alt":61.63,"az":77.6,"t":"2028-05-21T04:35:00Z","terrain":0.66},{"above_terrain":true,"airmass":1.13,"alt":62.54,"az":78.0,"t":"2028-05-21T04:40:00Z","terrain":0.63},{"above_terrain":true,"airmass":1.12,"alt":63.46,"az":78.5,"t":"2028-05-21T04:45:00Z","terrain":0.6},{"above_terrain":true,"airmass":1.11,"alt":64.37,"az":78.9,"t":"2028-05-21T04:50:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.1,"alt":65.29,"az":79.4,"t":"2028-05-21T04:55:00Z","terrain":0.53},{"above_terrain":true,"airmass":1.09,"alt":66.21,"az":79.9,"t":"2028-05-21T05:00:00Z","terrain":0.47},{"above_terrain":true,"airmass":1.08,"alt":67.14,"az":80.3,"t":"2028-05-21T05:05:00Z","terrain":0.53},{"above_terrain":true,"airmass":1.08,"alt":68.06,"az":80.8,"t":"2028-05-21T05:10:00Z","terrain":0.63},{"above_terrain":true,"airmass":1.07,"alt":68.98,"az":81.3,"t":"2028-05-21T05:15:00Z","terrain":0.71},{"above_terrain":true,"airmass":1.06,"alt":69.91,"az":81.7,"t":"2028-05-21T05:20:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.06,"alt":70.84,"az":82.2,"t":"2028-05-21T05:25:00Z","terrain":0.74},{"above_terrain":true,"airmass":1.05,"alt":71.76,"az":82.7,"t":"2028-05-21T05:30:00Z","terrain":0.59},{"above_terrain":true,"airmass":1.05,"alt":72.69,"az":83.1,"t":"2028-05-21T05:35:00Z","terrain":0.46},{"above_terrain":true,"airmass":1.04,"alt":73.62,"az":83.6,"t":"2028-05-21T05:40:00Z","terrain":0.42},{"above_terrain":true,"airmass":1.04,"alt":74.55,"az":84.1,"t":"2028-05-21T05:45:00Z","terrain":0.37},{"above_terrain":true,"airmass":1.03,"alt":75.48,"az":84.6,"t":"2028-05-21T05:50:00Z","terrain":0.33},{"above_terrain":true,"airmass":1.03,"alt":76.42,"az":85.1,"t":"2028-05-21T05:55:00Z","terrain":0.29},{"above_terrain":true,"airmass":1.02,"alt":77.35,"az":85.6,"t":"2028-05-21T06:00:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.02,"alt":78.28,"az":86.1,"t":"2028-05-21T06:05:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.02,"alt":79.22,"az":86.6,"t":"2028-05-21T06:10:00Z","terrain":0.11},{"above_terrain":true,"airmass":1.01,"alt":80.15,"az":87.2,"t":"2028-05-21T06:15:00Z","terrain":0.05},{"above_terrain":true,"airmass":1.01,"alt":81.09,"az":87.8,"t":"2028-05-21T06:20:00Z","terrain":-0.04},{"above_terrain":true,"airmass":1.01,"alt":82.02,"az":88.4,"t":"2028-05-21T06:25:00Z","terrain":-0.12},{"above_terrain":true,"airmass":1.01,"alt":82.96,"az":89.1,"t":"2028-05-21T06:30:00Z","terrain":-0.2},{"above_terrain":true,"airmass":1.01,"alt":83.89,"az":89.8,"t":"2028-05-21T06:35:00Z","terrain":-0.22},{"above_terrain":true,"airmass":1.0,"alt":84.83,"az":90.7,"t":"2028-05-21T06:40:00Z","terrain":-0.13},{"above_terrain":true,"airmass":1.0,"alt":85.77,"az":91.8,"t":"2028-05-21T06:45:00Z","terrain":0.06},{"above_terrain":true,"airmass":1.0,"alt":86.7,"az":93.2,"t":"2028-05-21T06:50:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.0,"alt":87.63,"az":95.5,"t":"2028-05-21T06:55:00Z","terrain":0.46},{"above_terrain":true,"airmass":1.0,"alt":88.56,"az":100.2,"t":"2028-05-21T07:00:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.0,"alt":89.45,"az":119.3,"t":"2028-05-21T07:05:00Z","terrain":-1.41},{"above_terrain":true,"airmass":1.0,"alt":89.46,"az":240.0,"t":"2028-05-21T07:10:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.0,"alt":88.57,"az":259.7,"t":"2028-05-21T07:15:00Z","terrain":0.54},{"above_terrain":true,"airmass":1.0,"alt":87.65,"az":264.5,"t":"2028-05-21T07:20:00Z","terrain":0.46},{"above_terrain":true,"airmass":1.0,"alt":86.71,"az":266.8,"t":"2028-05-21T07:25:00Z","terrain":0.55},{"above_terrain":true,"airmass":1.0,"alt":85.78,"az":268.2,"t":"2028-05-21T07:30:00Z","terrain":0.67},{"above_terrain":true,"airmass":1.0,"alt":84.84,"az":269.3,"t":"2028-05-21T07:35:00Z","terrain":0.79},{"above_terrain":true,"airmass":1.01,"alt":83.91,"az":270.2,"t":"2028-05-21T07:40:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.01,"alt":82.97,"az":270.9,"t":"2028-05-21T07:45:00Z","terrain":0.79},{"above_terrain":true,"airmass":1.01,"alt":82.03,"az":271.6,"t":"2028-05-21T07:50:00Z","terrain":0.56},{"above_terrain":true,"airmass":1.01,"alt":81.1,"az":272.2,"t":"2028-05-21T07:55:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.01,"alt":80.16,"az":272.8,"t":"2028-05-21T08:00:00Z","terrain":0.19},{"above_terrain":true,"airmass":1.02,"alt":79.23,"az":273.4,"t":"2028-05-21T08:05:00Z","terrain":0.08},{"above_terrain":true,"airmass":1.02,"alt":78.3,"az":273.9,"t":"2028-05-21T08:10:00Z","terrain":-0.01},{"above_terrain":true,"airmass":1.02,"alt":77.36,"az":274.4,"t":"2028-05-21T08:15:00Z","terrain":0.02},{"above_terrain":true,"airmass":1.03,"alt":76.43,"az":274.9,"t":"2028-05-21T08:20:00Z","terrain":0.08},{"above_terrain":true,"airmass":1.03,"alt":75.5,"az":275.4,"t":"2028-05-21T08:25:00Z","terrain":0.05},{"above_terrain":true,"airmass":1.04,"alt":74.57,"az":275.9,"t":"2028-05-21T08:30:00Z","terrain":-0.0},{"above_terrain":true,"airmass":1.04,"alt":73.64,"az":276.4,"t":"2028-05-21T08:35:00Z","terrain":-0.06},{"above_terrain":true,"airmass":1.05,"alt":72.71,"az":276.9,"t":"2028-05-21T08:40:00Z","terrain":-0.12},{"above_terrain":true,"airmass":1.05,"alt":71.78,"az":277.3,"t":"2028-05-21T08:45:00Z","terrain":-0.12},{"above_terrain":true,"airmass":1.06,"alt":70.85,"az":277.8,"t":"2028-05-21T08:50:00Z","terrain":-0.09},{"above_terrain":true,"airmass":1.06,"alt":69.92,"az":278.3,"t":"2028-05-21T08:55:00Z","terrain":-0.06},{"above_terrain":true,"airmass":1.07,"alt":69.0,"az":278.7,"t":"2028-05-21T09:00:00Z","terrain":-0.04}],"transit":{"airmass":1.0,"alt":89.5,"az":240.0,"t":"2028-05-21T07:10:00Z"},"usable_hours":0.5,"verdict":"poor","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."]}