{"assessment":{"best_window":{"end":"2028-04-18T01:55Z","end_local":"04:55","hours":2.33,"label":"good","mean_quality":0.77,"start":"2028-04-17T23:35Z","start_local":"02:35"},"cost":{"altitude":5.31,"clouds":0.0,"darkness":1.32,"moon":0.24},"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":-25,"cloud":null,"high":null,"iso":"2028-04-17T17:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-65,"precip":null,"q":0.0,"rh":null,"sky":"civil twilight","temp":null,"time":"20:00","wind":null},{"alt":-23,"cloud":null,"high":null,"iso":"2028-04-17T18:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-64,"precip":null,"q":0.0,"rh":null,"sky":"nautical twilight","temp":null,"time":"21:00","wind":null},{"alt":-18,"cloud":null,"high":null,"iso":"2028-04-17T19:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-58,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"22:00","wind":null},{"alt":-10,"cloud":null,"high":null,"iso":"2028-04-17T20:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-49,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"23:00","wind":null},{"alt":-1,"cloud":null,"high":null,"iso":"2028-04-17T21:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-39,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"00:00","wind":null},{"alt":8,"cloud":null,"high":null,"iso":"2028-04-17T22:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-28,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"01:00","wind":null},{"alt":19,"cloud":null,"high":null,"iso":"2028-04-17T23:00Z","label":"unusable","low":null,"mid":null,"moon_alt":-17,"precip":null,"q":0.0,"rh":null,"sky":"night","temp":null,"time":"02:00","wind":null},{"alt":30,"cloud":null,"high":null,"iso":"2028-04-18T00:00Z","label":"good","low":null,"mid":null,"moon_alt":-7,"precip":null,"q":0.8,"rh":null,"sky":"night","temp":null,"time":"03:00","wind":null},{"alt":41,"cloud":null,"high":null,"iso":"2028-04-18T01:00Z","label":"good","low":null,"mid":null,"moon_alt":4,"precip":null,"q":0.75,"rh":null,"sky":"night","temp":null,"time":"04:00","wind":null},{"alt":52,"cloud":null,"high":null,"iso":"2028-04-18T02:00Z","label":"marginal","low":null,"mid":null,"moon_alt":13,"precip":null,"q":0.39,"rh":null,"sky":"astronomical twilight","temp":null,"time":"05:00","wind":null},{"alt":62,"cloud":null,"high":null,"iso":"2028-04-18T03:00Z","label":"poor","low":null,"mid":null,"moon_alt":21,"precip":null,"q":0.12,"rh":null,"sky":"nautical twilight","temp":null,"time":"06:00","wind":null}],"peak_quality":0.84,"peak_sky":0.84,"quality_hours":2.37,"reasons":["the target being low or below 20\u00b0 cost 5.3 quality-hours","daylight and twilight cost 1.3 quality-hours"],"reference_hours":4.0,"score":null,"score_astronomy":50,"score_weather":null,"sky_hours":2.37,"verdict":"unknown","verdict_astronomy":"marginal","weather_known":false,"windows":[{"end":"2028-04-17T23:05Z","end_local":"02:05","hours":6.08,"label":"unusable","mean_quality":0.0,"start":"2028-04-17T17:00Z","start_local":"20:00"},{"end":"2028-04-17T23:35Z","end_local":"02:35","hours":0.5,"label":"marginal","mean_quality":0.49,"start":"2028-04-17T23:05Z","start_local":"02:05"},{"end":"2028-04-18T01:55Z","end_local":"04:55","hours":2.33,"label":"good","mean_quality":0.77,"start":"2028-04-17T23:35Z","start_local":"02:35"},{"end":"2028-04-18T02:35Z","end_local":"05:35","hours":0.67,"label":"marginal","mean_quality":0.4,"start":"2028-04-18T01:55Z","start_local":"04:55"},{"end":"2028-04-18T03:10Z","end_local":"06:10","hours":0.58,"label":"poor","mean_quality":0.12,"start":"2028-04-18T02:35Z","start_local":"05:35"},{"end":"2028-04-18T03:40Z","end_local":"06:40","hours":0.5,"label":"unusable","mean_quality":0.0,"start":"2028-04-18T03:10Z","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":"2028-04-17T18:45:43Z","dark_hours":7.15,"dark_to":"2028-04-18T01:54:35Z","moon":{"illumination":0.383,"phase":"waning crescent","waxing":false},"moon_free_dark_hours":5.88,"moonrise":"2028-04-18T00:39:01Z","moonset":"2028-04-17T09:54:37Z","sunrise":"2028-04-18T03:35:54Z","sunset":"2028-04-17T17:04:21Z","twilight":{"astronomical":{"end":"2028-04-17T18:45:43Z","start":"2028-04-18T01:54:35Z"},"civil":{"end":"2028-04-17T17:33:27Z","start":"2028-04-18T03:06:49Z"},"nautical":{"end":"2028-04-17T18:08:31Z","start":"2028-04-18T02:31:46Z"}},"window_end":"2028-04-18T09:00:00Z","window_start":"2028-04-17T09:00:00Z"},"night_date":"2028-04-17","site":{"elev_m":1750,"lat":41.693,"lon":24.739,"name":"NAO Rozhen"},"target":{"circumpolar":false,"dark_best":{"airmass":1.29,"alt":50.6,"t":"2028-04-18T01:50:00Z"},"dec":22.71085365,"dec_of_date":22.7904,"dec_str":"+22\u00b0 42' 39.1\"","good_hours":1.92,"limit_rise":"2028-04-17T23:04:46Z","limit_set":"2028-04-17T10:10:34Z","max_az_rate_deg_per_min":0.71,"moon_separation":41.1,"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 1.9 h above 30\u00b0, 2.8 h above 20\u00b0 \u2014 usable, at high airmass.","terrain":{"available":true,"behind_at":"2028-04-17T12:04:20Z","blocked_dark_hours":0,"clears_at":"2028-04-17T21:16:15Z","rise_az":272.2},"track":[{"above_terrain":true,"airmass":1.83,"alt":33.07,"az":272.2,"t":"2028-04-17T09:00:00Z","terrain":0.35},{"above_terrain":true,"airmass":1.88,"alt":32.13,"az":273.0,"t":"2028-04-17T09:05:00Z","terrain":0.13},{"above_terrain":true,"airmass":1.93,"alt":31.2,"az":273.8,"t":"2028-04-17T09:10:00Z","terrain":-0.0},{"above_terrain":true,"airmass":1.98,"alt":30.27,"az":274.6,"t":"2028-04-17T09:15:00Z","terrain":0.05},{"above_terrain":true,"airmass":2.04,"alt":29.33,"az":275.4,"t":"2028-04-17T09:20:00Z","terrain":0.05},{"above_terrain":true,"airmass":2.1,"alt":28.4,"az":276.2,"t":"2028-04-17T09:25:00Z","terrain":-0.04},{"above_terrain":true,"airmass":2.16,"alt":27.47,"az":277.0,"t":"2028-04-17T09:30:00Z","terrain":-0.14},{"above_terrain":true,"airmass":2.23,"alt":26.55,"az":277.8,"t":"2028-04-17T09:35:00Z","terrain":-0.09},{"above_terrain":true,"airmass":2.3,"alt":25.62,"az":278.5,"t":"2028-04-17T09:40:00Z","terrain":-0.05},{"above_terrain":true,"airmass":2.38,"alt":24.69,"az":279.3,"t":"2028-04-17T09:45:00Z","terrain":-0.05},{"above_terrain":true,"airmass":2.47,"alt":23.77,"az":280.0,"t":"2028-04-17T09:50:00Z","terrain":-0.12},{"above_terrain":true,"airmass":2.56,"alt":22.85,"az":280.8,"t":"2028-04-17T09:55:00Z","terrain":-0.0},{"above_terrain":true,"airmass":2.66,"alt":21.93,"az":281.6,"t":"2028-04-17T10:00:00Z","terrain":-0.06},{"above_terrain":true,"airmass":2.77,"alt":21.02,"az":282.3,"t":"2028-04-17T10:05:00Z","terrain":-0.09},{"above_terrain":true,"airmass":2.89,"alt":20.1,"az":283.1,"t":"2028-04-17T10:10:00Z","terrain":0.0},{"above_terrain":true,"airmass":3.02,"alt":19.19,"az":283.8,"t":"2028-04-17T10:15:00Z","terrain":0.1},{"above_terrain":true,"airmass":3.16,"alt":18.29,"az":284.6,"t":"2028-04-17T10:20:00Z","terrain":0.19},{"above_terrain":true,"airmass":3.32,"alt":17.38,"az":285.4,"t":"2028-04-17T10:25:00Z","terrain":0.23},{"above_terrain":true,"airmass":3.49,"alt":16.48,"az":286.1,"t":"2028-04-17T10:30:00Z","terrain":0.24},{"above_terrain":true,"airmass":3.68,"alt":15.58,"az":286.9,"t":"2028-04-17T10:35:00Z","terrain":0.35},{"above_terrain":true,"airmass":3.89,"alt":14.69,"az":287.6,"t":"2028-04-17T10:40:00Z","terrain":0.25},{"above_terrain":true,"airmass":4.13,"alt":13.8,"az":288.4,"t":"2028-04-17T10:45:00Z","terrain":0.17},{"above_terrain":true,"airmass":4.39,"alt":12.91,"az":289.1,"t":"2028-04-17T10:50:00Z","terrain":0.2},{"above_terrain":true,"airmass":4.7,"alt":12.03,"az":289.9,"t":"2028-04-17T10:55:00Z","terrain":0.28},{"above_terrain":true,"airmass":5.04,"alt":11.15,"az":290.7,"t":"2028-04-17T11:00:00Z","terrain":0.43},{"above_terrain":true,"airmass":5.44,"alt":10.28,"az":291.4,"t":"2028-04-17T11:05:00Z","terrain":0.52},{"above_terrain":true,"airmass":5.91,"alt":9.41,"az":292.2,"t":"2028-04-17T11:10:00Z","terrain":0.49},{"above_terrain":true,"airmass":6.46,"alt":8.55,"az":293.0,"t":"2028-04-17T11:15:00Z","terrain":0.28},{"above_terrain":true,"airmass":7.11,"alt":7.69,"az":293.8,"t":"2028-04-17T11:20:00Z","terrain":0.26},{"above_terrain":true,"airmass":7.89,"alt":6.84,"az":294.6,"t":"2028-04-17T11:25:00Z","terrain":0.24},{"above_terrain":true,"airmass":8.86,"alt":5.99,"az":295.4,"t":"2028-04-17T11:30:00Z","terrain":0.27},{"above_terrain":true,"airmass":10.07,"alt":5.14,"az":296.1,"t":"2028-04-17T11:35:00Z","terrain":0.32},{"above_terrain":true,"airmass":11.62,"alt":4.31,"az":296.9,"t":"2028-04-17T11:40:00Z","terrain":0.26},{"above_terrain":true,"airmass":13.66,"alt":3.47,"az":297.8,"t":"2028-04-17T11:45:00Z","terrain":0.15},{"above_terrain":true,"airmass":16.44,"alt":2.65,"az":298.6,"t":"2028-04-17T11:50:00Z","terrain":0.15},{"above_terrain":true,"airmass":20.37,"alt":1.83,"az":299.4,"t":"2028-04-17T11:55:00Z","terrain":0.25},{"above_terrain":true,"airmass":26.15,"alt":1.02,"az":300.2,"t":"2028-04-17T12:00:00Z","terrain":0.36},{"above_terrain":false,"airmass":34.91,"alt":0.21,"az":301.0,"t":"2028-04-17T12:05:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-0.59,"az":301.9,"t":"2028-04-17T12:10:00Z","terrain":0.11},{"above_terrain":false,"airmass":null,"alt":-1.38,"az":302.7,"t":"2028-04-17T12:15:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-2.16,"az":303.6,"t":"2028-04-17T12:20:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-2.94,"az":304.4,"t":"2028-04-17T12:25:00Z","terrain":-0.18},{"above_terrain":false,"airmass":null,"alt":-3.7,"az":305.3,"t":"2028-04-17T12:30:00Z","terrain":-0.26},{"above_terrain":false,"airmass":null,"alt":-4.46,"az":306.1,"t":"2028-04-17T12:35:00Z","terrain":-0.12},{"above_terrain":false,"airmass":null,"alt":-5.22,"az":307.0,"t":"2028-04-17T12:40:00Z","terrain":0.18},{"above_terrain":false,"airmass":null,"alt":-5.96,"az":307.9,"t":"2028-04-17T12:45:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-6.69,"az":308.8,"t":"2028-04-17T12:50:00Z","terrain":0.2},{"above_terrain":false,"airmass":null,"alt":-7.42,"az":309.7,"t":"2028-04-17T12:55:00Z","terrain":0.21},{"above_terrain":false,"airmass":null,"alt":-8.13,"az":310.6,"t":"2028-04-17T13:00:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-8.84,"az":311.6,"t":"2028-04-17T13:05:00Z","terrain":0.24},{"above_terrain":false,"airmass":null,"alt":-9.53,"az":312.5,"t":"2028-04-17T13:10:00Z","terrain":0.21},{"above_terrain":false,"airmass":null,"alt":-10.22,"az":313.4,"t":"2028-04-17T13:15:00Z","terrain":0.36},{"above_terrain":false,"airmass":null,"alt":-10.89,"az":314.4,"t":"2028-04-17T13:20:00Z","terrain":0.51},{"above_terrain":false,"airmass":null,"alt":-11.56,"az":315.4,"t":"2028-04-17T13:25:00Z","terrain":0.53},{"above_terrain":false,"airmass":null,"alt":-12.21,"az":316.3,"t":"2028-04-17T13:30:00Z","terrain":0.42},{"above_terrain":false,"airmass":null,"alt":-12.85,"az":317.3,"t":"2028-04-17T13:35:00Z","terrain":0.31},{"above_terrain":false,"airmass":null,"alt":-13.48,"az":318.3,"t":"2028-04-17T13:40:00Z","terrain":0.18},{"above_terrain":false,"airmass":null,"alt":-14.09,"az":319.3,"t":"2028-04-17T13:45:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-14.7,"az":320.3,"t":"2028-04-17T13:50:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-15.29,"az":321.4,"t":"2028-04-17T13:55:00Z","terrain":-0.05},{"above_terrain":false,"airmass":null,"alt":-15.86,"az":322.4,"t":"2028-04-17T14:00:00Z","terrain":0.16},{"above_terrain":false,"airmass":null,"alt":-16.43,"az":323.5,"t":"2028-04-17T14:05:00Z","terrain":-0.05},{"above_terrain":false,"airmass":null,"alt":-16.98,"az":324.5,"t":"2028-04-17T14:10:00Z","terrain":-0.2},{"above_terrain":false,"airmass":null,"alt":-17.51,"az":325.6,"t":"2028-04-17T14:15:00Z","terrain":-0.22},{"above_terrain":false,"airmass":null,"alt":-18.04,"az":326.7,"t":"2028-04-17T14:20:00Z","terrain":-0.34},{"above_terrain":false,"airmass":null,"alt":-18.54,"az":327.8,"t":"2028-04-17T14:25:00Z","terrain":-0.27},{"above_terrain":false,"airmass":null,"alt":-19.03,"az":328.9,"t":"2028-04-17T14:30:00Z","terrain":-0.14},{"above_terrain":false,"airmass":null,"alt":-19.51,"az":330.0,"t":"2028-04-17T14:35:00Z","terrain":-0.35},{"above_terrain":false,"airmass":null,"alt":-19.97,"az":331.1,"t":"2028-04-17T14:40:00Z","terrain":-0.36},{"above_terrain":false,"airmass":null,"alt":-20.41,"az":332.3,"t":"2028-04-17T14:45:00Z","terrain":-0.13},{"above_terrain":false,"airmass":null,"alt":-20.84,"az":333.4,"t":"2028-04-17T14:50:00Z","terrain":-0.16},{"above_terrain":false,"airmass":null,"alt":-21.25,"az":334.6,"t":"2028-04-17T14:55:00Z","terrain":-0.43},{"above_terrain":false,"airmass":null,"alt":-21.65,"az":335.7,"t":"2028-04-17T15:00:00Z","terrain":-0.76},{"above_terrain":false,"airmass":null,"alt":-22.02,"az":336.9,"t":"2028-04-17T15:05:00Z","terrain":-0.74},{"above_terrain":false,"airmass":null,"alt":-22.38,"az":338.1,"t":"2028-04-17T15:10:00Z","terrain":-0.5},{"above_terrain":false,"airmass":null,"alt":-22.72,"az":339.3,"t":"2028-04-17T15:15:00Z","terrain":-0.69},{"above_terrain":false,"airmass":null,"alt":-23.04,"az":340.5,"t":"2028-04-17T15:20:00Z","terrain":-0.49},{"above_terrain":false,"airmass":null,"alt":-23.34,"az":341.7,"t":"2028-04-17T15:25:00Z","terrain":-0.48},{"above_terrain":false,"airmass":null,"alt":-23.63,"az":342.9,"t":"2028-04-17T15:30:00Z","terrain":-0.4},{"above_terrain":false,"airmass":null,"alt":-23.89,"az":344.2,"t":"2028-04-17T15:35:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-24.14,"az":345.4,"t":"2028-04-17T15:40:00Z","terrain":-0.46},{"above_terrain":false,"airmass":null,"alt":-24.37,"az":346.6,"t":"2028-04-17T15:45:00Z","terrain":-0.47},{"above_terrain":false,"airmass":null,"alt":-24.57,"az":347.9,"t":"2028-04-17T15:50:00Z","terrain":-0.17},{"above_terrain":false,"airmass":null,"alt":-24.76,"az":349.1,"t":"2028-04-17T15:55:00Z","terrain":0.02},{"above_terrain":false,"airmass":null,"alt":-24.93,"az":350.4,"t":"2028-04-17T16:00:00Z","terrain":0.14},{"above_terrain":false,"airmass":null,"alt":-25.07,"az":351.7,"t":"2028-04-17T16:05:00Z","terrain":0.23},{"above_terrain":false,"airmass":null,"alt":-25.2,"az":352.9,"t":"2028-04-17T16:10:00Z","terrain":0.48},{"above_terrain":false,"airmass":null,"alt":-25.3,"az":354.2,"t":"2028-04-17T16:15:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-25.39,"az":355.5,"t":"2028-04-17T16:20:00Z","terrain":0.68},{"above_terrain":false,"airmass":null,"alt":-25.45,"az":356.8,"t":"2028-04-17T16:25:00Z","terrain":0.75},{"above_terrain":false,"airmass":null,"alt":-25.49,"az":358.0,"t":"2028-04-17T16:30:00Z","terrain":0.62},{"above_terrain":false,"airmass":null,"alt":-25.51,"az":359.3,"t":"2028-04-17T16:35:00Z","terrain":0.58},{"above_terrain":false,"airmass":null,"alt":-25.51,"az":0.6,"t":"2028-04-17T16:40:00Z","terrain":0.42},{"above_terrain":false,"airmass":null,"alt":-25.49,"az":1.9,"t":"2028-04-17T16:45:00Z","terrain":0.15},{"above_terrain":false,"airmass":null,"alt":-25.45,"az":3.2,"t":"2028-04-17T16:50:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-25.39,"az":4.4,"t":"2028-04-17T16:55:00Z","terrain":-0.34},{"above_terrain":false,"airmass":null,"alt":-25.31,"az":5.7,"t":"2028-04-17T17:00:00Z","terrain":-0.54},{"above_terrain":false,"airmass":null,"alt":-25.2,"az":7.0,"t":"2028-04-17T17:05:00Z","terrain":-0.41},{"above_terrain":false,"airmass":null,"alt":-25.08,"az":8.3,"t":"2028-04-17T17:10:00Z","terrain":-0.47},{"above_terrain":false,"airmass":null,"alt":-24.94,"az":9.5,"t":"2028-04-17T17:15:00Z","terrain":-0.63},{"above_terrain":false,"airmass":null,"alt":-24.77,"az":10.8,"t":"2028-04-17T17:20:00Z","terrain":-0.44},{"above_terrain":false,"airmass":null,"alt":-24.59,"az":12.0,"t":"2028-04-17T17:25:00Z","terrain":-0.18},{"above_terrain":false,"airmass":null,"alt":-24.38,"az":13.3,"t":"2028-04-17T17:30:00Z","terrain":-0.03},{"above_terrain":false,"airmass":null,"alt":-24.16,"az":14.5,"t":"2028-04-17T17:35:00Z","terrain":0.26},{"above_terrain":false,"airmass":null,"alt":-23.91,"az":15.8,"t":"2028-04-17T17:40:00Z","terrain":0.47},{"above_terrain":false,"airmass":null,"alt":-23.65,"az":17.0,"t":"2028-04-17T17:45:00Z","terrain":0.47},{"above_terrain":false,"airmass":null,"alt":-23.37,"az":18.2,"t":"2028-04-17T17:50:00Z","terrain":0.55},{"above_terrain":false,"airmass":null,"alt":-23.06,"az":19.4,"t":"2028-04-17T17:55:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-22.74,"az":20.6,"t":"2028-04-17T18:00:00Z","terrain":0.68},{"above_terrain":false,"airmass":null,"alt":-22.4,"az":21.8,"t":"2028-04-17T18:05:00Z","terrain":0.94},{"above_terrain":false,"airmass":null,"alt":-22.05,"az":23.0,"t":"2028-04-17T18:10:00Z","terrain":1.16},{"above_terrain":false,"airmass":null,"alt":-21.67,"az":24.2,"t":"2028-04-17T18:15:00Z","terrain":0.98},{"above_terrain":false,"airmass":null,"alt":-21.28,"az":25.4,"t":"2028-04-17T18:20:00Z","terrain":1.26},{"above_terrain":false,"airmass":null,"alt":-20.87,"az":26.5,"t":"2028-04-17T18:25:00Z","terrain":1.31},{"above_terrain":false,"airmass":null,"alt":-20.44,"az":27.7,"t":"2028-04-17T18:30:00Z","terrain":1.22},{"above_terrain":false,"airmass":null,"alt":-20.0,"az":28.8,"t":"2028-04-17T18:35:00Z","terrain":1.04},{"above_terrain":false,"airmass":null,"alt":-19.54,"az":29.9,"t":"2028-04-17T18:40:00Z","terrain":1.14},{"above_terrain":false,"airmass":null,"alt":-19.07,"az":31.0,"t":"2028-04-17T18:45:00Z","terrain":1.31},{"above_terrain":false,"airmass":null,"alt":-18.58,"az":32.2,"t":"2028-04-17T18:50:00Z","terrain":1.28},{"above_terrain":false,"airmass":null,"alt":-18.07,"az":33.2,"t":"2028-04-17T18:55:00Z","terrain":0.85},{"above_terrain":false,"airmass":null,"alt":-17.55,"az":34.3,"t":"2028-04-17T19:00:00Z","terrain":0.3},{"above_terrain":false,"airmass":null,"alt":-17.02,"az":35.4,"t":"2028-04-17T19:05:00Z","terrain":0.04},{"above_terrain":false,"airmass":null,"alt":-16.47,"az":36.5,"t":"2028-04-17T19:10:00Z","terrain":-0.03},{"above_terrain":false,"airmass":null,"alt":-15.9,"az":37.5,"t":"2028-04-17T19:15:00Z","terrain":-0.15},{"above_terrain":false,"airmass":null,"alt":-15.33,"az":38.6,"t":"2028-04-17T19:20:00Z","terrain":-0.18},{"above_terrain":false,"airmass":null,"alt":-14.74,"az":39.6,"t":"2028-04-17T19:25:00Z","terrain":-0.1},{"above_terrain":false,"airmass":null,"alt":-14.13,"az":40.6,"t":"2028-04-17T19:30:00Z","terrain":-0.01},{"above_terrain":false,"airmass":null,"alt":-13.52,"az":41.6,"t":"2028-04-17T19:35:00Z","terrain":0.08},{"above_terrain":false,"airmass":null,"alt":-12.89,"az":42.6,"t":"2028-04-17T19:40:00Z","terrain":0.2},{"above_terrain":false,"airmass":null,"alt":-12.25,"az":43.6,"t":"2028-04-17T19:45:00Z","terrain":0.34},{"above_terrain":false,"airmass":null,"alt":-11.6,"az":44.6,"t":"2028-04-17T19:50:00Z","terrain":0.51},{"above_terrain":false,"airmass":null,"alt":-10.94,"az":45.5,"t":"2028-04-17T19:55:00Z","terrain":0.63},{"above_terrain":false,"airmass":null,"alt":-10.26,"az":46.5,"t":"2028-04-17T20:00:00Z","terrain":0.64},{"above_terrain":false,"airmass":null,"alt":-9.58,"az":47.4,"t":"2028-04-17T20:05:00Z","terrain":0.58},{"above_terrain":false,"airmass":null,"alt":-8.89,"az":48.4,"t":"2028-04-17T20:10:00Z","terrain":0.49},{"above_terrain":false,"airmass":null,"alt":-8.18,"az":49.3,"t":"2028-04-17T20:15:00Z","terrain":0.41},{"above_terrain":false,"airmass":null,"alt":-7.47,"az":50.2,"t":"2028-04-17T20:20:00Z","terrain":0.43},{"above_terrain":false,"airmass":null,"alt":-6.74,"az":51.1,"t":"2028-04-17T20:25:00Z","terrain":0.54},{"above_terrain":false,"airmass":null,"alt":-6.01,"az":52.0,"t":"2028-04-17T20:30:00Z","terrain":0.63},{"above_terrain":false,"airmass":null,"alt":-5.27,"az":52.9,"t":"2028-04-17T20:35:00Z","terrain":0.82},{"above_terrain":false,"airmass":null,"alt":-4.52,"az":53.8,"t":"2028-04-17T20:40:00Z","terrain":0.97},{"above_terrain":false,"airmass":null,"alt":-3.76,"az":54.7,"t":"2028-04-17T20:45:00Z","terrain":1.05},{"above_terrain":false,"airmass":null,"alt":-2.99,"az":55.5,"t":"2028-04-17T20:50:00Z","terrain":1.06},{"above_terrain":false,"airmass":null,"alt":-2.21,"az":56.4,"t":"2028-04-17T20:55:00Z","terrain":1.06},{"above_terrain":false,"airmass":null,"alt":-1.43,"az":57.2,"t":"2028-04-17T21:00:00Z","terrain":1.11},{"above_terrain":false,"airmass":null,"alt":-0.64,"az":58.1,"t":"2028-04-17T21:05:00Z","terrain":1.25},{"above_terrain":false,"airmass":35.66,"alt":0.16,"az":58.9,"t":"2028-04-17T21:10:00Z","terrain":1.21},{"above_terrain":false,"airmass":26.64,"alt":0.96,"az":59.7,"t":"2028-04-17T21:15:00Z","terrain":1.18},{"above_terrain":true,"airmass":20.7,"alt":1.77,"az":60.6,"t":"2028-04-17T21:20:00Z","terrain":1.12},{"above_terrain":true,"airmass":16.67,"alt":2.59,"az":61.4,"t":"2028-04-17T21:25:00Z","terrain":1.06},{"above_terrain":true,"airmass":13.83,"alt":3.42,"az":62.2,"t":"2028-04-17T21:30:00Z","terrain":0.99},{"above_terrain":true,"airmass":11.74,"alt":4.25,"az":63.0,"t":"2028-04-17T21:35:00Z","terrain":0.91},{"above_terrain":true,"airmass":10.16,"alt":5.09,"az":63.8,"t":"2028-04-17T21:40:00Z","terrain":0.8},{"above_terrain":true,"airmass":8.93,"alt":5.93,"az":64.6,"t":"2028-04-17T21:45:00Z","terrain":0.77},{"above_terrain":true,"airmass":7.95,"alt":6.78,"az":65.4,"t":"2028-04-17T21:50:00Z","terrain":0.79},{"above_terrain":true,"airmass":7.16,"alt":7.63,"az":66.2,"t":"2028-04-17T21:55:00Z","terrain":0.85},{"above_terrain":true,"airmass":6.5,"alt":8.49,"az":66.9,"t":"2028-04-17T22:00:00Z","terrain":0.92},{"above_terrain":true,"airmass":5.94,"alt":9.35,"az":67.7,"t":"2028-04-17T22:05:00Z","terrain":0.97},{"above_terrain":true,"airmass":5.47,"alt":10.22,"az":68.5,"t":"2028-04-17T22:10:00Z","terrain":1.02},{"above_terrain":true,"airmass":5.07,"alt":11.09,"az":69.3,"t":"2028-04-17T22:15:00Z","terrain":1.1},{"above_terrain":true,"airmass":4.72,"alt":11.97,"az":70.0,"t":"2028-04-17T22:20:00Z","terrain":1.22},{"above_terrain":true,"airmass":4.41,"alt":12.85,"az":70.8,"t":"2028-04-17T22:25:00Z","terrain":1.25},{"above_terrain":true,"airmass":4.14,"alt":13.74,"az":71.6,"t":"2028-04-17T22:30:00Z","terrain":1.23},{"above_terrain":true,"airmass":3.9,"alt":14.63,"az":72.3,"t":"2028-04-17T22:35:00Z","terrain":1.13},{"above_terrain":true,"airmass":3.69,"alt":15.52,"az":73.1,"t":"2028-04-17T22:40:00Z","terrain":0.97},{"above_terrain":true,"airmass":3.5,"alt":16.42,"az":73.8,"t":"2028-04-17T22:45:00Z","terrain":0.77},{"above_terrain":true,"airmass":3.33,"alt":17.32,"az":74.6,"t":"2028-04-17T22:50:00Z","terrain":0.67},{"above_terrain":true,"airmass":3.17,"alt":18.22,"az":75.4,"t":"2028-04-17T22:55:00Z","terrain":0.66},{"above_terrain":true,"airmass":3.03,"alt":19.13,"az":76.1,"t":"2028-04-17T23:00:00Z","terrain":0.72},{"above_terrain":true,"airmass":2.9,"alt":20.04,"az":76.9,"t":"2028-04-17T23:05:00Z","terrain":0.7},{"above_terrain":true,"airmass":2.78,"alt":20.95,"az":77.6,"t":"2028-04-17T23:10:00Z","terrain":0.66},{"above_terrain":true,"airmass":2.67,"alt":21.87,"az":78.4,"t":"2028-04-17T23:15:00Z","terrain":0.61},{"above_terrain":true,"airmass":2.57,"alt":22.79,"az":79.1,"t":"2028-04-17T23:20:00Z","terrain":0.55},{"above_terrain":true,"airmass":2.48,"alt":23.71,"az":79.9,"t":"2028-04-17T23:25:00Z","terrain":0.47},{"above_terrain":true,"airmass":2.39,"alt":24.63,"az":80.7,"t":"2028-04-17T23:30:00Z","terrain":0.61},{"above_terrain":true,"airmass":2.31,"alt":25.56,"az":81.4,"t":"2028-04-17T23:35:00Z","terrain":0.73},{"above_terrain":true,"airmass":2.23,"alt":26.48,"az":82.2,"t":"2028-04-17T23:40:00Z","terrain":0.74},{"above_terrain":true,"airmass":2.16,"alt":27.41,"az":83.0,"t":"2028-04-17T23:45:00Z","terrain":0.48},{"above_terrain":true,"airmass":2.1,"alt":28.34,"az":83.7,"t":"2028-04-17T23:50:00Z","terrain":0.4},{"above_terrain":true,"airmass":2.04,"alt":29.27,"az":84.5,"t":"2028-04-17T23:55:00Z","terrain":0.34},{"above_terrain":true,"airmass":1.98,"alt":30.2,"az":85.3,"t":"2028-04-18T00:00:00Z","terrain":0.26},{"above_terrain":true,"airmass":1.93,"alt":31.14,"az":86.1,"t":"2028-04-18T00:05:00Z","terrain":0.16},{"above_terrain":true,"airmass":1.88,"alt":32.07,"az":86.9,"t":"2028-04-18T00:10:00Z","terrain":0.08},{"above_terrain":true,"airmass":1.83,"alt":33.01,"az":87.7,"t":"2028-04-18T00:15:00Z","terrain":-0.03},{"above_terrain":true,"airmass":1.79,"alt":33.94,"az":88.5,"t":"2028-04-18T00:20:00Z","terrain":-0.14},{"above_terrain":true,"airmass":1.75,"alt":34.88,"az":89.3,"t":"2028-04-18T00:25:00Z","terrain":-0.21},{"above_terrain":true,"airmass":1.71,"alt":35.81,"az":90.2,"t":"2028-04-18T00:30:00Z","terrain":-0.2},{"above_terrain":true,"airmass":1.67,"alt":36.75,"az":91.0,"t":"2028-04-18T00:35:00Z","terrain":-0.09},{"above_terrain":true,"airmass":1.63,"alt":37.68,"az":91.9,"t":"2028-04-18T00:40:00Z","terrain":0.07},{"above_terrain":true,"airmass":1.6,"alt":38.62,"az":92.7,"t":"2028-04-18T00:45:00Z","terrain":0.27},{"above_terrain":true,"airmass":1.57,"alt":39.55,"az":93.6,"t":"2028-04-18T00:50:00Z","terrain":0.38},{"above_terrain":true,"airmass":1.54,"alt":40.49,"az":94.5,"t":"2028-04-18T00:55:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.51,"alt":41.42,"az":95.4,"t":"2028-04-18T01:00:00Z","terrain":0.45},{"above_terrain":true,"airmass":1.48,"alt":42.35,"az":96.3,"t":"2028-04-18T01:05:00Z","terrain":0.61},{"above_terrain":true,"airmass":1.46,"alt":43.28,"az":97.3,"t":"2028-04-18T01:10:00Z","terrain":0.72},{"above_terrain":true,"airmass":1.43,"alt":44.21,"az":98.2,"t":"2028-04-18T01:15:00Z","terrain":0.64},{"above_terrain":true,"airmass":1.41,"alt":45.13,"az":99.2,"t":"2028-04-18T01:20:00Z","terrain":0.44},{"above_terrain":true,"airmass":1.39,"alt":46.06,"az":100.2,"t":"2028-04-18T01:25:00Z","terrain":0.24},{"above_terrain":true,"airmass":1.37,"alt":46.98,"az":101.2,"t":"2028-04-18T01:30:00Z","terrain":0.06},{"above_terrain":true,"airmass":1.35,"alt":47.89,"az":102.2,"t":"2028-04-18T01:35:00Z","terrain":-0.08},{"above_terrain":true,"airmass":1.33,"alt":48.8,"az":103.3,"t":"2028-04-18T01:40:00Z","terrain":-0.15},{"above_terrain":true,"airmass":1.31,"alt":49.71,"az":104.4,"t":"2028-04-18T01:45:00Z","terrain":-0.08},{"above_terrain":true,"airmass":1.29,"alt":50.62,"az":105.5,"t":"2028-04-18T01:50:00Z","terrain":-0.43},{"above_terrain":true,"airmass":1.28,"alt":51.52,"az":106.7,"t":"2028-04-18T01:55:00Z","terrain":-0.62},{"above_terrain":true,"airmass":1.26,"alt":52.41,"az":107.9,"t":"2028-04-18T02:00:00Z","terrain":-0.89},{"above_terrain":true,"airmass":1.25,"alt":53.3,"az":109.1,"t":"2028-04-18T02:05:00Z","terrain":-1.19},{"above_terrain":true,"airmass":1.23,"alt":54.18,"az":110.3,"t":"2028-04-18T02:10:00Z","terrain":-1.21},{"above_terrain":true,"airmass":1.22,"alt":55.05,"az":111.7,"t":"2028-04-18T02:15:00Z","terrain":-1.36},{"above_terrain":true,"airmass":1.21,"alt":55.92,"az":113.0,"t":"2028-04-18T02:20:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.19,"alt":56.78,"az":114.4,"t":"2028-04-18T02:25:00Z","terrain":-1.58},{"above_terrain":true,"airmass":1.18,"alt":57.62,"az":115.9,"t":"2028-04-18T02:30:00Z","terrain":-1.48},{"above_terrain":true,"airmass":1.17,"alt":58.46,"az":117.4,"t":"2028-04-18T02:35:00Z","terrain":-1.55},{"above_terrain":true,"airmass":1.16,"alt":59.29,"az":118.9,"t":"2028-04-18T02:40:00Z","terrain":-1.48},{"above_terrain":true,"airmass":1.15,"alt":60.1,"az":120.6,"t":"2028-04-18T02:45:00Z","terrain":-1.25},{"above_terrain":true,"airmass":1.14,"alt":60.9,"az":122.2,"t":"2028-04-18T02:50:00Z","terrain":-1.24},{"above_terrain":true,"airmass":1.14,"alt":61.68,"az":124.0,"t":"2028-04-18T02:55:00Z","terrain":-1.48},{"above_terrain":true,"airmass":1.13,"alt":62.45,"az":125.9,"t":"2028-04-18T03:00:00Z","terrain":-1.61},{"above_terrain":true,"airmass":1.12,"alt":63.2,"az":127.8,"t":"2028-04-18T03:05:00Z","terrain":-1.44},{"above_terrain":true,"airmass":1.11,"alt":63.93,"az":129.8,"t":"2028-04-18T03:10:00Z","terrain":-1.47},{"above_terrain":true,"airmass":1.11,"alt":64.63,"az":131.9,"t":"2028-04-18T03:15:00Z","terrain":-1.64},{"above_terrain":true,"airmass":1.1,"alt":65.32,"az":134.1,"t":"2028-04-18T03:20:00Z","terrain":-1.52},{"above_terrain":true,"airmass":1.09,"alt":65.98,"az":136.4,"t":"2028-04-18T03:25:00Z","terrain":-1.21},{"above_terrain":true,"airmass":1.09,"alt":66.61,"az":138.8,"t":"2028-04-18T03:30:00Z","terrain":-1.3},{"above_terrain":true,"airmass":1.08,"alt":67.21,"az":141.3,"t":"2028-04-18T03:35:00Z","terrain":-1.17},{"above_terrain":true,"airmass":1.08,"alt":67.78,"az":144.0,"t":"2028-04-18T03:40:00Z","terrain":-1.33},{"above_terrain":true,"airmass":1.08,"alt":68.31,"az":146.7,"t":"2028-04-18T03:45:00Z","terrain":-1.36},{"above_terrain":true,"airmass":1.07,"alt":68.8,"az":149.6,"t":"2028-04-18T03:50:00Z","terrain":-1.29},{"above_terrain":true,"airmass":1.07,"alt":69.26,"az":152.5,"t":"2028-04-18T03:55:00Z","terrain":-1.08},{"above_terrain":true,"airmass":1.07,"alt":69.67,"az":155.6,"t":"2028-04-18T04:00:00Z","terrain":-1.19},{"above_terrain":true,"airmass":1.06,"alt":70.03,"az":158.8,"t":"2028-04-18T04:05:00Z","terrain":-1.28},{"above_terrain":true,"airmass":1.06,"alt":70.34,"az":162.1,"t":"2028-04-18T04:10:00Z","terrain":-1.37},{"above_terrain":true,"airmass":1.06,"alt":70.6,"az":165.5,"t":"2028-04-18T04:15:00Z","terrain":-1.32},{"above_terrain":true,"airmass":1.06,"alt":70.81,"az":168.9,"t":"2028-04-18T04:20:00Z","terrain":-0.83},{"above_terrain":true,"airmass":1.06,"alt":70.96,"az":172.4,"t":"2028-04-18T04:25:00Z","terrain":-0.56},{"above_terrain":true,"airmass":1.06,"alt":71.06,"az":175.9,"t":"2028-04-18T04:30:00Z","terrain":-0.41},{"above_terrain":true,"airmass":1.06,"alt":71.1,"az":179.5,"t":"2028-04-18T04:35:00Z","terrain":-0.49},{"above_terrain":true,"airmass":1.06,"alt":71.08,"az":183.1,"t":"2028-04-18T04:40:00Z","terrain":-0.61},{"above_terrain":true,"airmass":1.06,"alt":71.0,"az":186.6,"t":"2028-04-18T04:45:00Z","terrain":-0.66},{"above_terrain":true,"airmass":1.06,"alt":70.86,"az":190.1,"t":"2028-04-18T04:50:00Z","terrain":-0.55},{"above_terrain":true,"airmass":1.06,"alt":70.67,"az":193.6,"t":"2028-04-18T04:55:00Z","terrain":-0.47},{"above_terrain":true,"airmass":1.06,"alt":70.42,"az":197.0,"t":"2028-04-18T05:00:00Z","terrain":-0.44},{"above_terrain":true,"airmass":1.06,"alt":70.12,"az":200.3,"t":"2028-04-18T05:05:00Z","terrain":-0.33},{"above_terrain":true,"airmass":1.07,"alt":69.77,"az":203.5,"t":"2028-04-18T05:10:00Z","terrain":-0.6},{"above_terrain":true,"airmass":1.07,"alt":69.38,"az":206.6,"t":"2028-04-18T05:15:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.07,"alt":68.94,"az":209.6,"t":"2028-04-18T05:20:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.07,"alt":68.45,"az":212.5,"t":"2028-04-18T05:25:00Z","terrain":0.45},{"above_terrain":true,"airmass":1.08,"alt":67.93,"az":215.3,"t":"2028-04-18T05:30:00Z","terrain":0.65},{"above_terrain":true,"airmass":1.08,"alt":67.37,"az":217.9,"t":"2028-04-18T05:35:00Z","terrain":1.24},{"above_terrain":true,"airmass":1.09,"alt":66.78,"az":220.5,"t":"2028-04-18T05:40:00Z","terrain":1.17},{"above_terrain":true,"airmass":1.09,"alt":66.16,"az":222.9,"t":"2028-04-18T05:45:00Z","terrain":0.76},{"above_terrain":true,"airmass":1.1,"alt":65.51,"az":225.3,"t":"2028-04-18T05:50:00Z","terrain":0.44},{"above_terrain":true,"airmass":1.1,"alt":64.83,"az":227.5,"t":"2028-04-18T05:55:00Z","terrain":1.06},{"above_terrain":true,"airmass":1.11,"alt":64.13,"az":229.6,"t":"2028-04-18T06:00:00Z","terrain":1.21},{"above_terrain":true,"airmass":1.12,"alt":63.41,"az":231.7,"t":"2028-04-18T06:05:00Z","terrain":0.89},{"above_terrain":true,"airmass":1.13,"alt":62.66,"az":233.6,"t":"2028-04-18T06:10:00Z","terrain":0.81},{"above_terrain":true,"airmass":1.13,"alt":61.9,"az":235.5,"t":"2028-04-18T06:15:00Z","terrain":0.89},{"above_terrain":true,"airmass":1.14,"alt":61.12,"az":237.3,"t":"2028-04-18T06:20:00Z","terrain":0.82},{"above_terrain":true,"airmass":1.15,"alt":60.33,"az":239.0,"t":"2028-04-18T06:25:00Z","terrain":0.51},{"above_terrain":true,"airmass":1.16,"alt":59.52,"az":240.6,"t":"2028-04-18T06:30:00Z","terrain":0.77},{"above_terrain":true,"airmass":1.17,"alt":58.69,"az":242.2,"t":"2028-04-18T06:35:00Z","terrain":1.03},{"above_terrain":true,"airmass":1.18,"alt":57.86,"az":243.7,"t":"2028-04-18T06:40:00Z","terrain":0.96},{"above_terrain":true,"airmass":1.19,"alt":57.02,"az":245.2,"t":"2028-04-18T06:45:00Z","terrain":1.03},{"above_terrain":true,"airmass":1.2,"alt":56.16,"az":246.6,"t":"2028-04-18T06:50:00Z","terrain":1.08},{"above_terrain":true,"airmass":1.22,"alt":55.3,"az":248.0,"t":"2028-04-18T06:55:00Z","terrain":0.59},{"above_terrain":true,"airmass":1.23,"alt":54.43,"az":249.3,"t":"2028-04-18T07:00:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.24,"alt":53.55,"az":250.6,"t":"2028-04-18T07:05:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.26,"alt":52.66,"az":251.8,"t":"2028-04-18T07:10:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.27,"alt":51.77,"az":253.0,"t":"2028-04-18T07:15:00Z","terrain":0.17},{"above_terrain":true,"airmass":1.29,"alt":50.87,"az":254.2,"t":"2028-04-18T07:20:00Z","terrain":0.18},{"above_terrain":true,"airmass":1.3,"alt":49.97,"az":255.3,"t":"2028-04-18T07:25:00Z","terrain":0.28},{"above_terrain":true,"airmass":1.32,"alt":49.06,"az":256.4,"t":"2028-04-18T07:30:00Z","terrain":0.41},{"above_terrain":true,"airmass":1.34,"alt":48.15,"az":257.5,"t":"2028-04-18T07:35:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.36,"alt":47.23,"az":258.5,"t":"2028-04-18T07:40:00Z","terrain":0.42},{"above_terrain":true,"airmass":1.38,"alt":46.32,"az":259.5,"t":"2028-04-18T07:45:00Z","terrain":0.52},{"above_terrain":true,"airmass":1.4,"alt":45.39,"az":260.5,"t":"2028-04-18T07:50:00Z","terrain":0.71},{"above_terrain":true,"airmass":1.43,"alt":44.47,"az":261.5,"t":"2028-04-18T07:55:00Z","terrain":0.91},{"above_terrain":true,"airmass":1.45,"alt":43.54,"az":262.5,"t":"2028-04-18T08:00:00Z","terrain":0.9},{"above_terrain":true,"airmass":1.48,"alt":42.61,"az":263.4,"t":"2028-04-18T08:05:00Z","terrain":0.69},{"above_terrain":true,"airmass":1.5,"alt":41.68,"az":264.3,"t":"2028-04-18T08:10:00Z","terrain":0.48},{"above_terrain":true,"airmass":1.53,"alt":40.75,"az":265.3,"t":"2028-04-18T08:15:00Z","terrain":0.41},{"above_terrain":true,"airmass":1.56,"alt":39.82,"az":266.1,"t":"2028-04-18T08:20:00Z","terrain":0.48},{"above_terrain":true,"airmass":1.59,"alt":38.88,"az":267.0,"t":"2028-04-18T08:25:00Z","terrain":0.57},{"above_terrain":true,"airmass":1.62,"alt":37.95,"az":267.9,"t":"2028-04-18T08:30:00Z","terrain":0.64},{"above_terrain":true,"airmass":1.66,"alt":37.01,"az":268.7,"t":"2028-04-18T08:35:00Z","terrain":0.72},{"above_terrain":true,"airmass":1.69,"alt":36.08,"az":269.6,"t":"2028-04-18T08:40:00Z","terrain":0.84},{"above_terrain":true,"airmass":1.73,"alt":35.14,"az":270.4,"t":"2028-04-18T08:45:00Z","terrain":0.85},{"above_terrain":true,"airmass":1.78,"alt":34.21,"az":271.2,"t":"2028-04-18T08:50:00Z","terrain":0.69},{"above_terrain":true,"airmass":1.82,"alt":33.27,"az":272.1,"t":"2028-04-18T08:55:00Z","terrain":0.4},{"above_terrain":true,"airmass":1.87,"alt":32.33,"az":272.9,"t":"2028-04-18T09:00:00Z","terrain":0.18}],"transit":{"airmass":1.06,"alt":71.1,"az":179.5,"t":"2028-04-18T04:35:00Z"},"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."]}