{"assessment":{"best_window":{"end":"2028-04-19T01:55Z","end_local":"04:55","hours":2.42,"label":"good","mean_quality":0.8,"start":"2028-04-18T23:30Z","start_local":"02:30"},"cost":{"altitude":5.27,"clouds":0.0,"darkness":1.23,"moon":0.14},"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 possible, with compromises \u2014 weather unknown","hourly":[{"alt":-22,"cloud":null,"high":null,"iso":"2028-04-18T18:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-61,"precip":null,"q":0.0,"rh":null,"sky":"nautical twilight","temp":null,"time":"21:00","wind":null},{"alt":-17,"cloud":null,"high":null,"iso":"2028-04-18T19:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-59,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"22:00","wind":null},{"alt":-10,"cloud":null,"high":null,"iso":"2028-04-18T20:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-52,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":-1,"cloud":null,"high":null,"iso":"2028-04-18T21:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-43,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":9,"cloud":null,"high":null,"iso":"2028-04-18T22:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-33,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":20,"cloud":null,"high":null,"iso":"2028-04-18T23:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-22,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":31,"cloud":null,"high":null,"iso":"2028-04-19T00:00Z","label":"good","low":null,"mid":null,"moon_alt":-11,"precip":null,"q":0.81,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":42,"cloud":null,"high":null,"iso":"2028-04-19T01:00Z","label":"good","low":null,"mid":null,"moon_alt":0,"precip":null,"q":0.88,"rh":null,"sky":"night","temp":null,"time":"04:00","wind":null},{"alt":53,"cloud":null,"high":null,"iso":"2028-04-19T02:00Z","label":"marginal","low":null,"mid":null,"moon_alt":10,"precip":null,"q":0.42,"rh":null,"sky":"astronomical twilight","temp":null,"time":"05:00","wind":null},{"alt":63,"cloud":null,"high":null,"iso":"2028-04-19T03:00Z","label":"poor","low":null,"mid":null,"moon_alt":20,"precip":null,"q":0.13,"rh":null,"sky":"nautical twilight","temp":null,"time":"06:00","wind":null}],"peak_quality":0.88,"peak_sky":0.88,"quality_hours":2.51,"reasons":["the target being low or below 20\u00b0 cost 5.3 quality-hours","daylight and twilight cost 1.2 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":55,"score_weather":null,"sky_hours":2.51,"verdict":"unknown","verdict_astronomy":"marginal","weather_known":false,"windows":[{"end":"2028-04-18T23:05Z","end_local":"02:05","hours":6.0,"label":"unusable","mean_quality":0.0,"start":"2028-04-18T17:05Z","start_local":"20:05"},{"end":"2028-04-18T23:30Z","end_local":"02:30","hours":0.42,"label":"marginal","mean_quality":0.5,"start":"2028-04-18T23:05Z","start_local":"02:05"},{"end":"2028-04-19T01:55Z","end_local":"04:55","hours":2.42,"label":"good","mean_quality":0.8,"start":"2028-04-18T23:30Z","start_local":"02:30"},{"end":"2028-04-19T02:35Z","end_local":"05:35","hours":0.67,"label":"marginal","mean_quality":0.42,"start":"2028-04-19T01:55Z","start_local":"04:55"},{"end":"2028-04-19T03:10Z","end_local":"06:10","hours":0.58,"label":"poor","mean_quality":0.13,"start":"2028-04-19T02:35Z","start_local":"05:35"},{"end":"2028-04-19T03:35Z","end_local":"06:35","hours":0.42,"label":"unusable","mean_quality":0.0,"start":"2028-04-19T03:10Z","start_local":"06:10"}]},"calculation_version":"2026-10-10.1","forecast":[],"forecast_source":"none","forecast_updated_at":null,"limits":{"good_alt":30.0,"usable_alt":20.0},"night":{"dark_from":"2028-04-18T18:47:14Z","dark_hours":7.09,"dark_to":"2028-04-19T01:52:37Z","moon":{"illumination":0.294,"phase":"waning crescent","waxing":false},"moon_free_dark_hours":6.23,"moonrise":"2028-04-19T01:02:37Z","moonset":"2028-04-18T10:56:41Z","sunrise":"2028-04-19T03:34:22Z","sunset":"2028-04-18T17:05:26Z","twilight":{"astronomical":{"end":"2028-04-18T18:47:14Z","start":"2028-04-19T01:52:37Z"},"civil":{"end":"2028-04-18T17:34:37Z","start":"2028-04-19T03:05:12Z"},"nautical":{"end":"2028-04-18T18:09:50Z","start":"2028-04-19T02:30:01Z"}},"window_end":"2028-04-19T09:00:00Z","window_start":"2028-04-18T09:00:00Z"},"night_date":"2028-04-18","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":1.28,"alt":51.3,"t":"2028-04-19T01:50:00Z"},"dec":22.71085365,"dec_of_date":22.7904,"dec_str":"+22\u00b0 42' 39.1\"","good_hours":2.0,"limit_rise":"2028-04-18T23:00:50Z","limit_set":"2028-04-18T10:06:38Z","max_az_rate_deg_per_min":0.71,"moon_separation":42.2,"never_rises":false,"ra":300.18213726,"ra_of_date":300.4877,"ra_str":"20h 00m 43.7s","resolved":{"dec":22.71085365,"name":"HD 189733","ra":300.18213726,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=HD%20189733","source":"sesame","spectral_type":"K2V","type":"BY*","type_text":"BY Draconis variable \u2014 a spotted, rotating star","vmag":7.648},"summary":"Only 2.0 h above 30\u00b0, 2.8 h above 20\u00b0 \u2014 usable, at high airmass.","terrain":{"available":true,"behind_at":"2028-04-18T12:00:27Z","blocked_dark_hours":0,"clears_at":"2028-04-18T21:12:18Z","rise_az":272.9},"track":[{"above_terrain":true,"airmass":1.87,"alt":32.33,"az":272.9,"t":"2028-04-18T09:00:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.91,"alt":31.4,"az":273.7,"t":"2028-04-18T09:05:00Z","terrain":0.03},{"above_terrain":true,"airmass":1.97,"alt":30.47,"az":274.5,"t":"2028-04-18T09:10:00Z","terrain":0.03},{"above_terrain":true,"airmass":2.02,"alt":29.53,"az":275.3,"t":"2028-04-18T09:15:00Z","terrain":0.06},{"above_terrain":true,"airmass":2.08,"alt":28.6,"az":276.0,"t":"2028-04-18T09:20:00Z","terrain":-0.01},{"above_terrain":true,"airmass":2.15,"alt":27.67,"az":276.8,"t":"2028-04-18T09:25:00Z","terrain":-0.12},{"above_terrain":true,"airmass":2.21,"alt":26.74,"az":277.6,"t":"2028-04-18T09:30:00Z","terrain":-0.1},{"above_terrain":true,"airmass":2.29,"alt":25.82,"az":278.4,"t":"2028-04-18T09:35:00Z","terrain":-0.06},{"above_terrain":true,"airmass":2.37,"alt":24.89,"az":279.1,"t":"2028-04-18T09:40:00Z","terrain":-0.03},{"above_terrain":true,"airmass":2.45,"alt":23.97,"az":279.9,"t":"2028-04-18T09:45:00Z","terrain":-0.12},{"above_terrain":true,"airmass":2.54,"alt":23.05,"az":280.6,"t":"2028-04-18T09:50:00Z","terrain":-0.03},{"above_terrain":true,"airmass":2.64,"alt":22.13,"az":281.4,"t":"2028-04-18T09:55:00Z","terrain":-0.04},{"above_terrain":true,"airmass":2.75,"alt":21.21,"az":282.2,"t":"2028-04-18T10:00:00Z","terrain":-0.11},{"above_terrain":true,"airmass":2.86,"alt":20.3,"az":282.9,"t":"2028-04-18T10:05:00Z","terrain":-0.02},{"above_terrain":true,"airmass":2.99,"alt":19.39,"az":283.7,"t":"2028-04-18T10:10:00Z","terrain":0.08},{"above_terrain":true,"airmass":3.13,"alt":18.48,"az":284.4,"t":"2028-04-18T10:15:00Z","terrain":0.17},{"above_terrain":true,"airmass":3.28,"alt":17.58,"az":285.2,"t":"2028-04-18T10:20:00Z","terrain":0.23},{"above_terrain":true,"airmass":3.45,"alt":16.67,"az":285.9,"t":"2028-04-18T10:25:00Z","terrain":0.22},{"above_terrain":true,"airmass":3.63,"alt":15.78,"az":286.7,"t":"2028-04-18T10:30:00Z","terrain":0.33},{"above_terrain":true,"airmass":3.84,"alt":14.88,"az":287.5,"t":"2028-04-18T10:35:00Z","terrain":0.28},{"above_terrain":true,"airmass":4.07,"alt":13.99,"az":288.2,"t":"2028-04-18T10:40:00Z","terrain":0.17},{"above_terrain":true,"airmass":4.33,"alt":13.1,"az":289.0,"t":"2028-04-18T10:45:00Z","terrain":0.18},{"above_terrain":true,"airmass":4.63,"alt":12.22,"az":289.7,"t":"2028-04-18T10:50:00Z","terrain":0.26},{"above_terrain":true,"airmass":4.97,"alt":11.34,"az":290.5,"t":"2028-04-18T10:55:00Z","terrain":0.39},{"above_terrain":true,"airmass":5.35,"alt":10.47,"az":291.3,"t":"2028-04-18T11:00:00Z","terrain":0.51},{"above_terrain":true,"airmass":5.8,"alt":9.6,"az":292.1,"t":"2028-04-18T11:05:00Z","terrain":0.54},{"above_terrain":true,"airmass":6.33,"alt":8.73,"az":292.8,"t":"2028-04-18T11:10:00Z","terrain":0.33},{"above_terrain":true,"airmass":6.96,"alt":7.87,"az":293.6,"t":"2028-04-18T11:15:00Z","terrain":0.26},{"above_terrain":true,"airmass":7.71,"alt":7.02,"az":294.4,"t":"2028-04-18T11:20:00Z","terrain":0.24},{"above_terrain":true,"airmass":8.63,"alt":6.17,"az":295.2,"t":"2028-04-18T11:25:00Z","terrain":0.25},{"above_terrain":true,"airmass":9.79,"alt":5.32,"az":296.0,"t":"2028-04-18T11:30:00Z","terrain":0.33},{"above_terrain":true,"airmass":11.25,"alt":4.48,"az":296.8,"t":"2028-04-18T11:35:00Z","terrain":0.28},{"above_terrain":true,"airmass":13.17,"alt":3.65,"az":297.6,"t":"2028-04-18T11:40:00Z","terrain":0.18},{"above_terrain":true,"airmass":15.77,"alt":2.83,"az":298.4,"t":"2028-04-18T11:45:00Z","terrain":0.14},{"above_terrain":true,"airmass":19.41,"alt":2.01,"az":299.2,"t":"2028-04-18T11:50:00Z","terrain":0.21},{"above_terrain":true,"airmass":24.71,"alt":1.19,"az":300.0,"t":"2028-04-18T11:55:00Z","terrain":0.37},{"above_terrain":true,"airmass":32.72,"alt":0.38,"az":300.8,"t":"2028-04-18T12:00:00Z","terrain":0.33},{"above_terrain":false,"airmass":null,"alt":-0.42,"az":301.7,"t":"2028-04-18T12:05:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-1.21,"az":302.5,"t":"2028-04-18T12:10:00Z","terrain":-0.08},{"above_terrain":false,"airmass":null,"alt":-1.99,"az":303.4,"t":"2028-04-18T12:15:00Z","terrain":-0.18},{"above_terrain":false,"airmass":null,"alt":-2.77,"az":304.2,"t":"2028-04-18T12:20:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-3.54,"az":305.1,"t":"2028-04-18T12:25:00Z","terrain":-0.28},{"above_terrain":false,"airmass":null,"alt":-4.3,"az":306.0,"t":"2028-04-18T12:30:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-5.06,"az":306.8,"t":"2028-04-18T12:35:00Z","terrain":0.12},{"above_terrain":false,"airmass":null,"alt":-5.8,"az":307.7,"t":"2028-04-18T12:40:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-6.54,"az":308.6,"t":"2028-04-18T12:45:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-7.26,"az":309.5,"t":"2028-04-18T12:50:00Z","terrain":0.2},{"above_terrain":false,"airmass":null,"alt":-7.98,"az":310.4,"t":"2028-04-18T12:55:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-8.69,"az":311.4,"t":"2028-04-18T13:00:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-9.39,"az":312.3,"t":"2028-04-18T13:05:00Z","terrain":0.18},{"above_terrain":false,"airmass":null,"alt":-10.07,"az":313.2,"t":"2028-04-18T13:10:00Z","terrain":0.32},{"above_terrain":false,"airmass":null,"alt":-10.75,"az":314.2,"t":"2028-04-18T13:15:00Z","terrain":0.49},{"above_terrain":false,"airmass":null,"alt":-11.41,"az":315.2,"t":"2028-04-18T13:20:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-12.07,"az":316.1,"t":"2028-04-18T13:25:00Z","terrain":0.46},{"above_terrain":false,"airmass":null,"alt":-12.71,"az":317.1,"t":"2028-04-18T13:30:00Z","terrain":0.3},{"above_terrain":false,"airmass":null,"alt":-13.34,"az":318.1,"t":"2028-04-18T13:35:00Z","terrain":0.28},{"above_terrain":false,"airmass":null,"alt":-13.96,"az":319.1,"t":"2028-04-18T13:40:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-14.57,"az":320.1,"t":"2028-04-18T13:45:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-15.16,"az":321.2,"t":"2028-04-18T13:50:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-15.74,"az":322.2,"t":"2028-04-18T13:55:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-16.31,"az":323.2,"t":"2028-04-18T14:00:00Z","terrain":0.01},{"above_terrain":false,"airmass":null,"alt":-16.86,"az":324.3,"t":"2028-04-18T14:05:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-17.4,"az":325.4,"t":"2028-04-18T14:10:00Z","terrain":-0.21},{"above_terrain":false,"airmass":null,"alt":-17.93,"az":326.4,"t":"2028-04-18T14:15:00Z","terrain":-0.31},{"above_terrain":false,"airmass":null,"alt":-18.44,"az":327.5,"t":"2028-04-18T14:20:00Z","terrain":-0.3},{"above_terrain":false,"airmass":null,"alt":-18.93,"az":328.6,"t":"2028-04-18T14:25:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-19.41,"az":329.8,"t":"2028-04-18T14:30:00Z","terrain":-0.3},{"above_terrain":false,"airmass":null,"alt":-19.87,"az":330.9,"t":"2028-04-18T14:35:00Z","terrain":-0.39},{"above_terrain":false,"airmass":null,"alt":-20.32,"az":332.0,"t":"2028-04-18T14:40:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-20.75,"az":333.2,"t":"2028-04-18T14:45:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-21.17,"az":334.3,"t":"2028-04-18T14:50:00Z","terrain":-0.34},{"above_terrain":false,"airmass":null,"alt":-21.56,"az":335.5,"t":"2028-04-18T14:55:00Z","terrain":-0.7},{"above_terrain":false,"airmass":null,"alt":-21.94,"az":336.7,"t":"2028-04-18T15:00:00Z","terrain":-0.76},{"above_terrain":false,"airmass":null,"alt":-22.3,"az":337.8,"t":"2028-04-18T15:05:00Z","terrain":-0.51},{"above_terrain":false,"airmass":null,"alt":-22.65,"az":339.0,"t":"2028-04-18T15:10:00Z","terrain":-0.74},{"above_terrain":false,"airmass":null,"alt":-22.97,"az":340.2,"t":"2028-04-18T15:15:00Z","terrain":-0.51},{"above_terrain":false,"airmass":null,"alt":-23.28,"az":341.4,"t":"2028-04-18T15:20:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-23.57,"az":342.7,"t":"2028-04-18T15:25:00Z","terrain":-0.42},{"above_terrain":false,"airmass":null,"alt":-23.84,"az":343.9,"t":"2028-04-18T15:30:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-24.09,"az":345.1,"t":"2028-04-18T15:35:00Z","terrain":-0.42},{"above_terrain":false,"airmass":null,"alt":-24.32,"az":346.4,"t":"2028-04-18T15:40:00Z","terrain":-0.5},{"above_terrain":false,"airmass":null,"alt":-24.53,"az":347.6,"t":"2028-04-18T15:45:00Z","terrain":-0.25},{"above_terrain":false,"airmass":null,"alt":-24.72,"az":348.9,"t":"2028-04-18T15:50:00Z","terrain":-0.02},{"above_terrain":false,"airmass":null,"alt":-24.89,"az":350.1,"t":"2028-04-18T15:55:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-25.04,"az":351.4,"t":"2028-04-18T16:00:00Z","terrain":0.19},{"above_terrain":false,"airmass":null,"alt":-25.17,"az":352.7,"t":"2028-04-18T16:05:00Z","terrain":0.42},{"above_terrain":false,"airmass":null,"alt":-25.28,"az":353.9,"t":"2028-04-18T16:10:00Z","terrain":0.61},{"above_terrain":false,"airmass":null,"alt":-25.37,"az":355.2,"t":"2028-04-18T16:15:00Z","terrain":0.65},{"above_terrain":false,"airmass":null,"alt":-25.44,"az":356.5,"t":"2028-04-18T16:20:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-25.48,"az":357.8,"t":"2028-04-18T16:25:00Z","terrain":0.65},{"above_terrain":false,"airmass":null,"alt":-25.51,"az":359.0,"t":"2028-04-18T16:30:00Z","terrain":0.61},{"above_terrain":false,"airmass":null,"alt":-25.52,"az":0.3,"t":"2028-04-18T16:35:00Z","terrain":0.46},{"above_terrain":false,"airmass":null,"alt":-25.5,"az":1.6,"t":"2028-04-18T16:40:00Z","terrain":0.22},{"above_terrain":false,"airmass":null,"alt":-25.46,"az":2.9,"t":"2028-04-18T16:45:00Z","terrain":-0.1},{"above_terrain":false,"airmass":null,"alt":-25.41,"az":4.2,"t":"2028-04-18T16:50:00Z","terrain":-0.3},{"above_terrain":false,"airmass":null,"alt":-25.33,"az":5.4,"t":"2028-04-18T16:55:00Z","terrain":-0.5},{"above_terrain":false,"airmass":null,"alt":-25.23,"az":6.7,"t":"2028-04-18T17:00:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-25.11,"az":8.0,"t":"2028-04-18T17:05:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-24.97,"az":9.2,"t":"2028-04-18T17:10:00Z","terrain":-0.65},{"above_terrain":false,"airmass":null,"alt":-24.81,"az":10.5,"t":"2028-04-18T17:15:00Z","terrain":-0.5},{"above_terrain":false,"airmass":null,"alt":-24.63,"az":11.8,"t":"2028-04-18T17:20:00Z","terrain":-0.23},{"above_terrain":false,"airmass":null,"alt":-24.43,"az":13.0,"t":"2028-04-18T17:25:00Z","terrain":-0.07},{"above_terrain":false,"airmass":null,"alt":-24.21,"az":14.3,"t":"2028-04-18T17:30:00Z","terrain":0.17},{"above_terrain":false,"airmass":null,"alt":-23.97,"az":15.5,"t":"2028-04-18T17:35:00Z","terrain":0.45},{"above_terrain":false,"airmass":null,"alt":-23.71,"az":16.7,"t":"2028-04-18T17:40:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-23.43,"az":18.0,"t":"2028-04-18T17:45:00Z","terrain":0.53},{"above_terrain":false,"airmass":null,"alt":-23.13,"az":19.2,"t":"2028-04-18T17:50:00Z","terrain":0.63},{"above_terrain":false,"airmass":null,"alt":-22.81,"az":20.4,"t":"2028-04-18T17:55:00Z","terrain":0.68},{"above_terrain":false,"airmass":null,"alt":-22.48,"az":21.6,"t":"2028-04-18T18:00:00Z","terrain":0.86},{"above_terrain":false,"airmass":null,"alt":-22.12,"az":22.8,"t":"2028-04-18T18:05:00Z","terrain":1.12},{"above_terrain":false,"airmass":null,"alt":-21.75,"az":23.9,"t":"2028-04-18T18:10:00Z","terrain":0.93},{"above_terrain":false,"airmass":null,"alt":-21.36,"az":25.1,"t":"2028-04-18T18:15:00Z","terrain":1.23},{"above_terrain":false,"airmass":null,"alt":-20.96,"az":26.3,"t":"2028-04-18T18:20:00Z","terrain":1.32},{"above_terrain":false,"airmass":null,"alt":-20.54,"az":27.4,"t":"2028-04-18T18:25:00Z","terrain":1.24},{"above_terrain":false,"airmass":null,"alt":-20.1,"az":28.6,"t":"2028-04-18T18:30:00Z","terrain":1.08},{"above_terrain":false,"airmass":null,"alt":-19.64,"az":29.7,"t":"2028-04-18T18:35:00Z","terrain":1.1},{"above_terrain":false,"airmass":null,"alt":-19.17,"az":30.8,"t":"2028-04-18T18:40:00Z","terrain":1.28},{"above_terrain":false,"airmass":null,"alt":-18.68,"az":31.9,"t":"2028-04-18T18:45:00Z","terrain":1.33},{"above_terrain":false,"airmass":null,"alt":-18.18,"az":33.0,"t":"2028-04-18T18:50:00Z","terrain":0.98},{"above_terrain":false,"airmass":null,"alt":-17.66,"az":34.1,"t":"2028-04-18T18:55:00Z","terrain":0.39},{"above_terrain":false,"airmass":null,"alt":-17.13,"az":35.2,"t":"2028-04-18T19:00:00Z","terrain":0.05},{"above_terrain":false,"airmass":null,"alt":-16.59,"az":36.2,"t":"2028-04-18T19:05:00Z","terrain":0.0},{"above_terrain":false,"airmass":null,"alt":-16.02,"az":37.3,"t":"2028-04-18T19:10:00Z","terrain":-0.13},{"above_terrain":false,"airmass":null,"alt":-15.45,"az":38.3,"t":"2028-04-18T19:15:00Z","terrain":-0.19},{"above_terrain":false,"airmass":null,"alt":-14.86,"az":39.4,"t":"2028-04-18T19:20:00Z","terrain":-0.12},{"above_terrain":false,"airmass":null,"alt":-14.26,"az":40.4,"t":"2028-04-18T19:25:00Z","terrain":-0.02},{"above_terrain":false,"airmass":null,"alt":-13.65,"az":41.4,"t":"2028-04-18T19:30:00Z","terrain":0.06},{"above_terrain":false,"airmass":null,"alt":-13.03,"az":42.4,"t":"2028-04-18T19:35:00Z","terrain":0.17},{"above_terrain":false,"airmass":null,"alt":-12.39,"az":43.4,"t":"2028-04-18T19:40:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-11.74,"az":44.4,"t":"2028-04-18T19:45:00Z","terrain":0.47},{"above_terrain":false,"airmass":null,"alt":-11.08,"az":45.3,"t":"2028-04-18T19:50:00Z","terrain":0.61},{"above_terrain":false,"airmass":null,"alt":-10.41,"az":46.3,"t":"2028-04-18T19:55:00Z","terrain":0.65},{"above_terrain":false,"airmass":null,"alt":-9.73,"az":47.2,"t":"2028-04-18T20:00:00Z","terrain":0.59},{"above_terrain":false,"airmass":null,"alt":-9.04,"az":48.2,"t":"2028-04-18T20:05:00Z","terrain":0.51},{"above_terrain":false,"airmass":null,"alt":-8.33,"az":49.1,"t":"2028-04-18T20:10:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-7.62,"az":50.0,"t":"2028-04-18T20:15:00Z","terrain":0.4},{"above_terrain":false,"airmass":null,"alt":-6.9,"az":50.9,"t":"2028-04-18T20:20:00Z","terrain":0.52},{"above_terrain":false,"airmass":null,"alt":-6.17,"az":51.8,"t":"2028-04-18T20:25:00Z","terrain":0.61},{"above_terrain":false,"airmass":null,"alt":-5.43,"az":52.7,"t":"2028-04-18T20:30:00Z","terrain":0.78},{"above_terrain":false,"airmass":null,"alt":-4.68,"az":53.6,"t":"2028-04-18T20:35:00Z","terrain":0.94},{"above_terrain":false,"airmass":null,"alt":-3.92,"az":54.5,"t":"2028-04-18T20:40:00Z","terrain":1.04},{"above_terrain":false,"airmass":null,"alt":-3.15,"az":55.3,"t":"2028-04-18T20:45:00Z","terrain":1.07},{"above_terrain":false,"airmass":null,"alt":-2.38,"az":56.2,"t":"2028-04-18T20:50:00Z","terrain":1.05},{"above_terrain":false,"airmass":null,"alt":-1.6,"az":57.1,"t":"2028-04-18T20:55:00Z","terrain":1.08},{"above_terrain":false,"airmass":null,"alt":-0.81,"az":57.9,"t":"2028-04-18T21:00:00Z","terrain":1.23},{"above_terrain":false,"airmass":null,"alt":-0.01,"az":58.7,"t":"2028-04-18T21:05:00Z","terrain":1.22},{"above_terrain":false,"airmass":28.26,"alt":0.79,"az":59.6,"t":"2028-04-18T21:10:00Z","terrain":1.19},{"above_terrain":true,"airmass":21.78,"alt":1.6,"az":60.4,"t":"2028-04-18T21:15:00Z","terrain":1.14},{"above_terrain":true,"airmass":17.41,"alt":2.42,"az":61.2,"t":"2028-04-18T21:20:00Z","terrain":1.07},{"above_terrain":true,"airmass":14.36,"alt":3.24,"az":62.0,"t":"2028-04-18T21:25:00Z","terrain":1.01},{"above_terrain":true,"airmass":12.14,"alt":4.07,"az":62.8,"t":"2028-04-18T21:30:00Z","terrain":0.93},{"above_terrain":true,"airmass":10.47,"alt":4.91,"az":63.6,"t":"2028-04-18T21:35:00Z","terrain":0.82},{"above_terrain":true,"airmass":9.17,"alt":5.75,"az":64.4,"t":"2028-04-18T21:40:00Z","terrain":0.77},{"above_terrain":true,"airmass":8.15,"alt":6.59,"az":65.2,"t":"2028-04-18T21:45:00Z","terrain":0.78},{"above_terrain":true,"airmass":7.31,"alt":7.45,"az":66.0,"t":"2028-04-18T21:50:00Z","terrain":0.83},{"above_terrain":true,"airmass":6.63,"alt":8.3,"az":66.8,"t":"2028-04-18T21:55:00Z","terrain":0.91},{"above_terrain":true,"airmass":6.05,"alt":9.17,"az":67.6,"t":"2028-04-18T22:00:00Z","terrain":0.96},{"above_terrain":true,"airmass":5.57,"alt":10.03,"az":68.3,"t":"2028-04-18T22:05:00Z","terrain":1.01},{"above_terrain":true,"airmass":5.15,"alt":10.91,"az":69.1,"t":"2028-04-18T22:10:00Z","terrain":1.07},{"above_terrain":true,"airmass":4.79,"alt":11.78,"az":69.9,"t":"2028-04-18T22:15:00Z","terrain":1.2},{"above_terrain":true,"airmass":4.48,"alt":12.66,"az":70.6,"t":"2028-04-18T22:20:00Z","terrain":1.25},{"above_terrain":true,"airmass":4.2,"alt":13.55,"az":71.4,"t":"2028-04-18T22:25:00Z","terrain":1.24},{"above_terrain":true,"airmass":3.95,"alt":14.44,"az":72.2,"t":"2028-04-18T22:30:00Z","terrain":1.17},{"above_terrain":true,"airmass":3.73,"alt":15.33,"az":72.9,"t":"2028-04-18T22:35:00Z","terrain":1.01},{"above_terrain":true,"airmass":3.54,"alt":16.23,"az":73.7,"t":"2028-04-18T22:40:00Z","terrain":0.81},{"above_terrain":true,"airmass":3.36,"alt":17.13,"az":74.4,"t":"2028-04-18T22:45:00Z","terrain":0.69},{"above_terrain":true,"airmass":3.2,"alt":18.03,"az":75.2,"t":"2028-04-18T22:50:00Z","terrain":0.65},{"above_terrain":true,"airmass":3.06,"alt":18.94,"az":75.9,"t":"2028-04-18T22:55:00Z","terrain":0.72},{"above_terrain":true,"airmass":2.92,"alt":19.85,"az":76.7,"t":"2028-04-18T23:00:00Z","terrain":0.71},{"above_terrain":true,"airmass":2.8,"alt":20.76,"az":77.5,"t":"2028-04-18T23:05:00Z","terrain":0.67},{"above_terrain":true,"airmass":2.69,"alt":21.67,"az":78.2,"t":"2028-04-18T23:10:00Z","terrain":0.62},{"above_terrain":true,"airmass":2.59,"alt":22.59,"az":79.0,"t":"2028-04-18T23:15:00Z","terrain":0.57},{"above_terrain":true,"airmass":2.49,"alt":23.51,"az":79.7,"t":"2028-04-18T23:20:00Z","terrain":0.49},{"above_terrain":true,"airmass":2.41,"alt":24.43,"az":80.5,"t":"2028-04-18T23:25:00Z","terrain":0.57},{"above_terrain":true,"airmass":2.33,"alt":25.36,"az":81.3,"t":"2028-04-18T23:30:00Z","terrain":0.71},{"above_terrain":true,"airmass":2.25,"alt":26.28,"az":82.0,"t":"2028-04-18T23:35:00Z","terrain":0.79},{"above_terrain":true,"airmass":2.18,"alt":27.21,"az":82.8,"t":"2028-04-18T23:40:00Z","terrain":0.54},{"above_terrain":true,"airmass":2.11,"alt":28.14,"az":83.6,"t":"2028-04-18T23:45:00Z","terrain":0.42},{"above_terrain":true,"airmass":2.05,"alt":29.07,"az":84.4,"t":"2028-04-18T23:50:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.99,"alt":30.0,"az":85.1,"t":"2028-04-18T23:55:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.94,"alt":30.94,"az":85.9,"t":"2028-04-19T00:00:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.89,"alt":31.87,"az":86.7,"t":"2028-04-19T00:05:00Z","terrain":0.1},{"above_terrain":true,"airmass":1.84,"alt":32.81,"az":87.5,"t":"2028-04-19T00:10:00Z","terrain":-0.0},{"above_terrain":true,"airmass":1.8,"alt":33.74,"az":88.3,"t":"2028-04-19T00:15:00Z","terrain":-0.12},{"above_terrain":true,"airmass":1.75,"alt":34.68,"az":89.2,"t":"2028-04-19T00:20:00Z","terrain":-0.2},{"above_terrain":true,"airmass":1.71,"alt":35.61,"az":90.0,"t":"2028-04-19T00:25:00Z","terrain":-0.22},{"above_terrain":true,"airmass":1.68,"alt":36.55,"az":90.8,"t":"2028-04-19T00:30:00Z","terrain":-0.11},{"above_terrain":true,"airmass":1.64,"alt":37.48,"az":91.7,"t":"2028-04-19T00:35:00Z","terrain":0.04},{"above_terrain":true,"airmass":1.61,"alt":38.42,"az":92.5,"t":"2028-04-19T00:40:00Z","terrain":0.23},{"above_terrain":true,"airmass":1.57,"alt":39.35,"az":93.4,"t":"2028-04-19T00:45:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.54,"alt":40.29,"az":94.3,"t":"2028-04-19T00:50:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.52,"alt":41.22,"az":95.2,"t":"2028-04-19T00:55:00Z","terrain":0.41},{"above_terrain":true,"airmass":1.49,"alt":42.15,"az":96.1,"t":"2028-04-19T01:00:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.46,"alt":43.08,"az":97.1,"t":"2028-04-19T01:05:00Z","terrain":0.73},{"above_terrain":true,"airmass":1.44,"alt":44.01,"az":98.0,"t":"2028-04-19T01:10:00Z","terrain":0.68},{"above_terrain":true,"airmass":1.41,"alt":44.94,"az":99.0,"t":"2028-04-19T01:15:00Z","terrain":0.49},{"above_terrain":true,"airmass":1.39,"alt":45.86,"az":100.0,"t":"2028-04-19T01:20:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.37,"alt":46.78,"az":101.0,"t":"2028-04-19T01:25:00Z","terrain":0.09},{"above_terrain":true,"airmass":1.35,"alt":47.7,"az":102.0,"t":"2028-04-19T01:30:00Z","terrain":-0.04},{"above_terrain":true,"airmass":1.33,"alt":48.61,"az":103.1,"t":"2028-04-19T01:35:00Z","terrain":-0.2},{"above_terrain":true,"airmass":1.31,"alt":49.52,"az":104.2,"t":"2028-04-19T01:40:00Z","terrain":-0.02},{"above_terrain":true,"airmass":1.3,"alt":50.42,"az":105.3,"t":"2028-04-19T01:45:00Z","terrain":-0.33},{"above_terrain":true,"airmass":1.28,"alt":51.33,"az":106.4,"t":"2028-04-19T01:50:00Z","terrain":-0.63},{"above_terrain":true,"airmass":1.26,"alt":52.22,"az":107.6,"t":"2028-04-19T01:55:00Z","terrain":-0.8},{"above_terrain":true,"airmass":1.25,"alt":53.11,"az":108.8,"t":"2028-04-19T02:00:00Z","terrain":-1.14},{"above_terrain":true,"airmass":1.24,"alt":53.99,"az":110.1,"t":"2028-04-19T02:05:00Z","terrain":-1.16},{"above_terrain":true,"airmass":1.22,"alt":54.87,"az":111.4,"t":"2028-04-19T02:10:00Z","terrain":-1.35},{"above_terrain":true,"airmass":1.21,"alt":55.73,"az":112.7,"t":"2028-04-19T02:15:00Z","terrain":-1.42},{"above_terrain":true,"airmass":1.2,"alt":56.59,"az":114.1,"t":"2028-04-19T02:20:00Z","terrain":-1.61},{"above_terrain":true,"airmass":1.19,"alt":57.44,"az":115.5,"t":"2028-04-19T02:25:00Z","terrain":-1.49},{"above_terrain":true,"airmass":1.17,"alt":58.28,"az":117.0,"t":"2028-04-19T02:30:00Z","terrain":-1.62},{"above_terrain":true,"airmass":1.16,"alt":59.11,"az":118.6,"t":"2028-04-19T02:35:00Z","terrain":-1.46},{"above_terrain":true,"airmass":1.15,"alt":59.93,"az":120.2,"t":"2028-04-19T02:40:00Z","terrain":-1.24},{"above_terrain":true,"airmass":1.15,"alt":60.73,"az":121.9,"t":"2028-04-19T02:45:00Z","terrain":-1.2},{"above_terrain":true,"airmass":1.14,"alt":61.51,"az":123.6,"t":"2028-04-19T02:50:00Z","terrain":-1.45},{"above_terrain":true,"airmass":1.13,"alt":62.29,"az":125.5,"t":"2028-04-19T02:55:00Z","terrain":-1.62},{"above_terrain":true,"airmass":1.12,"alt":63.04,"az":127.4,"t":"2028-04-19T03:00:00Z","terrain":-1.49},{"above_terrain":true,"airmass":1.11,"alt":63.77,"az":129.4,"t":"2028-04-19T03:05:00Z","terrain":-1.29},{"above_terrain":true,"airmass":1.11,"alt":64.49,"az":131.4,"t":"2028-04-19T03:10:00Z","terrain":-1.67},{"above_terrain":true,"airmass":1.1,"alt":65.18,"az":133.6,"t":"2028-04-19T03:15:00Z","terrain":-1.58},{"above_terrain":true,"airmass":1.1,"alt":65.84,"az":135.9,"t":"2028-04-19T03:20:00Z","terrain":-1.2},{"above_terrain":true,"airmass":1.09,"alt":66.48,"az":138.3,"t":"2028-04-19T03:25:00Z","terrain":-1.2},{"above_terrain":true,"airmass":1.09,"alt":67.08,"az":140.8,"t":"2028-04-19T03:30:00Z","terrain":-1.15},{"above_terrain":true,"airmass":1.08,"alt":67.66,"az":143.4,"t":"2028-04-19T03:35:00Z","terrain":-1.35},{"above_terrain":true,"airmass":1.08,"alt":68.2,"az":146.1,"t":"2028-04-19T03:40:00Z","terrain":-1.49},{"above_terrain":true,"airmass":1.07,"alt":68.7,"az":148.9,"t":"2028-04-19T03:45:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.07,"alt":69.16,"az":151.9,"t":"2028-04-19T03:50:00Z","terrain":-1.26},{"above_terrain":true,"airmass":1.07,"alt":69.58,"az":155.0,"t":"2028-04-19T03:55:00Z","terrain":-1.08},{"above_terrain":true,"airmass":1.06,"alt":69.96,"az":158.1,"t":"2028-04-19T04:00:00Z","terrain":-1.08},{"above_terrain":true,"airmass":1.06,"alt":70.28,"az":161.4,"t":"2028-04-19T04:05:00Z","terrain":-1.24},{"above_terrain":true,"airmass":1.06,"alt":70.55,"az":164.7,"t":"2028-04-19T04:10:00Z","terrain":-1.43},{"above_terrain":true,"airmass":1.06,"alt":70.77,"az":168.2,"t":"2028-04-19T04:15:00Z","terrain":-0.93},{"above_terrain":true,"airmass":1.06,"alt":70.94,"az":171.6,"t":"2028-04-19T04:20:00Z","terrain":-0.61},{"above_terrain":true,"airmass":1.06,"alt":71.04,"az":175.2,"t":"2028-04-19T04:25:00Z","terrain":-0.45},{"above_terrain":true,"airmass":1.06,"alt":71.09,"az":178.7,"t":"2028-04-19T04:30:00Z","terrain":-0.41},{"above_terrain":true,"airmass":1.06,"alt":71.09,"az":182.3,"t":"2028-04-19T04:35:00Z","terrain":-0.66},{"above_terrain":true,"airmass":1.06,"alt":71.02,"az":185.9,"t":"2028-04-19T04:40:00Z","terrain":-0.71},{"above_terrain":true,"airmass":1.06,"alt":70.89,"az":189.4,"t":"2028-04-19T04:45:00Z","terrain":-0.58},{"above_terrain":true,"airmass":1.06,"alt":70.71,"az":192.8,"t":"2028-04-19T04:50:00Z","terrain":-0.44},{"above_terrain":true,"airmass":1.06,"alt":70.48,"az":196.3,"t":"2028-04-19T04:55:00Z","terrain":-0.59},{"above_terrain":true,"airmass":1.06,"alt":70.19,"az":199.6,"t":"2028-04-19T05:00:00Z","terrain":-0.28},{"above_terrain":true,"airmass":1.06,"alt":69.85,"az":202.8,"t":"2028-04-19T05:05:00Z","terrain":-0.61},{"above_terrain":true,"airmass":1.07,"alt":69.47,"az":205.9,"t":"2028-04-19T05:10:00Z","terrain":0.07},{"above_terrain":true,"airmass":1.07,"alt":69.03,"az":209.0,"t":"2028-04-19T05:15:00Z","terrain":0.31},{"above_terrain":true,"airmass":1.07,"alt":68.56,"az":211.9,"t":"2028-04-19T05:20:00Z","terrain":0.45},{"above_terrain":true,"airmass":1.08,"alt":68.05,"az":214.7,"t":"2028-04-19T05:25:00Z","terrain":0.65},{"above_terrain":true,"airmass":1.08,"alt":67.5,"az":217.4,"t":"2028-04-19T05:30:00Z","terrain":1.11},{"above_terrain":true,"airmass":1.09,"alt":66.91,"az":219.9,"t":"2028-04-19T05:35:00Z","terrain":1.21},{"above_terrain":true,"airmass":1.09,"alt":66.29,"az":222.4,"t":"2028-04-19T05:40:00Z","terrain":0.93},{"above_terrain":true,"airmass":1.1,"alt":65.65,"az":224.8,"t":"2028-04-19T05:45:00Z","terrain":0.36},{"above_terrain":true,"airmass":1.1,"alt":64.98,"az":227.0,"t":"2028-04-19T05:50:00Z","terrain":0.99},{"above_terrain":true,"airmass":1.11,"alt":64.28,"az":229.2,"t":"2028-04-19T05:55:00Z","terrain":1.28},{"above_terrain":true,"airmass":1.12,"alt":63.56,"az":231.2,"t":"2028-04-19T06:00:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.12,"alt":62.82,"az":233.2,"t":"2028-04-19T06:05:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.13,"alt":62.06,"az":235.1,"t":"2028-04-19T06:10:00Z","terrain":0.96},{"above_terrain":true,"airmass":1.14,"alt":61.29,"az":236.9,"t":"2028-04-19T06:15:00Z","terrain":0.82},{"above_terrain":true,"airmass":1.15,"alt":60.5,"az":238.6,"t":"2028-04-19T06:20:00Z","terrain":0.62},{"above_terrain":true,"airmass":1.16,"alt":59.69,"az":240.3,"t":"2028-04-19T06:25:00Z","terrain":0.79},{"above_terrain":true,"airmass":1.17,"alt":58.87,"az":241.9,"t":"2028-04-19T06:30:00Z","terrain":1.0},{"above_terrain":true,"airmass":1.18,"alt":58.04,"az":243.4,"t":"2028-04-19T06:35:00Z","terrain":0.98},{"above_terrain":true,"airmass":1.19,"alt":57.2,"az":244.9,"t":"2028-04-19T06:40:00Z","terrain":0.98},{"above_terrain":true,"airmass":1.2,"alt":56.35,"az":246.3,"t":"2028-04-19T06:45:00Z","terrain":1.13},{"above_terrain":true,"airmass":1.21,"alt":55.48,"az":247.7,"t":"2028-04-19T06:50:00Z","terrain":0.72},{"above_terrain":true,"airmass":1.23,"alt":54.61,"az":249.0,"t":"2028-04-19T06:55:00Z","terrain":0.49},{"above_terrain":true,"airmass":1.24,"alt":53.74,"az":250.3,"t":"2028-04-19T07:00:00Z","terrain":0.58},{"above_terrain":true,"airmass":1.25,"alt":52.85,"az":251.5,"t":"2028-04-19T07:05:00Z","terrain":0.37},{"above_terrain":true,"airmass":1.27,"alt":51.96,"az":252.7,"t":"2028-04-19T07:10:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.28,"alt":51.06,"az":253.9,"t":"2028-04-19T07:15:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.3,"alt":50.16,"az":255.1,"t":"2028-04-19T07:20:00Z","terrain":0.25},{"above_terrain":true,"airmass":1.32,"alt":49.26,"az":256.2,"t":"2028-04-19T07:25:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.34,"alt":48.35,"az":257.2,"t":"2028-04-19T07:30:00Z","terrain":0.41},{"above_terrain":true,"airmass":1.36,"alt":47.43,"az":258.3,"t":"2028-04-19T07:35:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.38,"alt":46.51,"az":259.3,"t":"2028-04-19T07:40:00Z","terrain":0.51},{"above_terrain":true,"airmass":1.4,"alt":45.59,"az":260.3,"t":"2028-04-19T07:45:00Z","terrain":0.65},{"above_terrain":true,"airmass":1.42,"alt":44.67,"az":261.3,"t":"2028-04-19T07:50:00Z","terrain":0.88},{"above_terrain":true,"airmass":1.44,"alt":43.74,"az":262.3,"t":"2028-04-19T07:55:00Z","terrain":0.93},{"above_terrain":true,"airmass":1.47,"alt":42.81,"az":263.2,"t":"2028-04-19T08:00:00Z","terrain":0.75},{"above_terrain":true,"airmass":1.5,"alt":41.88,"az":264.1,"t":"2028-04-19T08:05:00Z","terrain":0.5},{"above_terrain":true,"airmass":1.52,"alt":40.95,"az":265.1,"t":"2028-04-19T08:10:00Z","terrain":0.39},{"above_terrain":true,"airmass":1.55,"alt":40.02,"az":266.0,"t":"2028-04-19T08:15:00Z","terrain":0.47},{"above_terrain":true,"airmass":1.58,"alt":39.08,"az":266.8,"t":"2028-04-19T08:20:00Z","terrain":0.55},{"above_terrain":true,"airmass":1.62,"alt":38.15,"az":267.7,"t":"2028-04-19T08:25:00Z","terrain":0.63},{"above_terrain":true,"airmass":1.65,"alt":37.21,"az":268.6,"t":"2028-04-19T08:30:00Z","terrain":0.71},{"above_terrain":true,"airmass":1.69,"alt":36.28,"az":269.4,"t":"2028-04-19T08:35:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.73,"alt":35.34,"az":270.2,"t":"2028-04-19T08:40:00Z","terrain":0.87},{"above_terrain":true,"airmass":1.77,"alt":34.41,"az":271.1,"t":"2028-04-19T08:45:00Z","terrain":0.75},{"above_terrain":true,"airmass":1.81,"alt":33.47,"az":271.9,"t":"2028-04-19T08:50:00Z","terrain":0.46},{"above_terrain":true,"airmass":1.85,"alt":32.53,"az":272.7,"t":"2028-04-19T08:55:00Z","terrain":0.22},{"above_terrain":true,"airmass":1.9,"alt":31.6,"az":273.5,"t":"2028-04-19T09:00:00Z","terrain":0.05}],"transit":{"airmass":1.06,"alt":71.1,"az":178.7,"t":"2028-04-19T04:30:00Z"},"usable_hours":2.83,"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."]}