← single night · whole-night plan
Which nights are best for a target over the coming weeks. The astronomy mark (darkness × altitude × Moon) is computed for every night; the weather and the overall mark exist only where Open-Meteo has a forecast (the next four days) or ERA5 history (past nights) — the rest is honestly blank.
| night of | astronomy | weather | overall | best window | highest | dark h | Moon | Moon sep. |
|---|---|---|---|---|---|---|---|---|
| 2030-03-02 Sat | 23 | — | unknown | 19:45–20:35 (good, 0.83 h) | 89.7° 14:25 | 9.6 | 2% | 63.9° |
| 2030-03-03 Sun | 21 | — | unknown | 19:50–20:30 (good, 0.67 h) | 89.7° 14:20 | 9.55 | 0% | 53.2° |
| 2030-03-04 Mon | 20 | — | unknown | 19:50–20:25 (good, 0.58 h) | 89.7° 14:15 | 9.51 | 1% | 43.6° |
| 2030-03-05 Tue | 18 | — | unknown | 19:50–20:20 (good, 0.5 h) | 89.5° 14:10 | 9.46 | 3% | 35.7° |
| 2030-03-06 Wed | 15 | — | unknown | 19:50–20:15 (good, 0.42 h) | 89.6° 14:10 | 9.41 | 7% | 30.5° |
| 2030-03-07 Thu | 11 | — | unknown | 19:55–20:05 (good, 0.17 h) | 89.7° 14:05 | 9.37 | 13% | 29.4° |
| 2030-03-08 Fri | 9 | — | unknown | 19:20–20:40 (marginal, 1.33 h) | 89.7° 14:00 | 9.32 | 20% | 32.6° |
| 2030-03-09 Sat | 7 | — | unknown | 19:55–20:40 (marginal, 0.75 h) | 89.6° 13:55 | 9.27 | 28% | 39.0° |
| 2030-03-10 Sun | 6 | — | unknown | 19:55–20:35 (marginal, 0.67 h) | 89.5° 13:55 | 9.22 | 37% | 47.2° |
| 2030-03-11 Mon | 4 | — | unknown | 20:00–20:30 (marginal, 0.5 h) | 89.6° 13:50 | 9.17 | 46% | 56.4° |
| 2030-03-12 Tue | 3 | — | unknown | 20:00–20:25 (marginal, 0.42 h) | 89.7° 13:45 | 9.12 | 56% | 66.4° |
| 2030-03-13 Wed | 3 | — | unknown | 20:00–20:20 (marginal, 0.33 h) | 89.7° 13:40 | 9.07 | 65% | 76.8° |
| 2030-03-14 Thu | 2 | — | unknown | 20:00–20:15 (marginal, 0.25 h) | 89.6° 13:35 | 9.02 | 74% | 87.7° |
| 2030-03-15 Fri | 2 | — | unknown | 20:05–20:15 (marginal, 0.17 h) | 89.5° 13:35 | 8.97 | 83% | 99.0° |
| 2030-03-16 Sat | 2 | — | unknown | 20:05–20:10 (marginal, 0.08 h) | 89.7° 13:30 | 8.92 | 90% | 110.4° |
| 2030-03-17 Sun | 1 | — | unknown | — | 89.7° 13:25 | 8.87 | 96% | 121.9° |
| 2030-03-18 Mon | 1 | — | unknown | — | 89.7° 13:20 | 8.82 | 99% | 133.0° |
| 2030-03-19 Tue | 1 | — | unknown | — | 89.5° 13:15 | 8.77 | 100% | 142.7° |
| 2030-03-20 Wed | 1 | — | unknown | — | 89.6° 13:15 | 8.72 | 98% | 149.3° |
| 2030-03-21 Thu | 1 | — | unknown | — | 89.7° 13:10 | 8.67 | 93% | 150.2° |
| 2030-03-22 Fri | 0 | — | unknown | — | 89.7° 13:05 | 8.62 | 86% | 145.0° |
| 2030-03-23 Sat | 0 | — | unknown | — | 89.6° 13:00 | 8.56 | 77% | 135.8° |
| 2030-03-24 Sun | 0 | — | unknown | — | 89.5° 13:00 | 8.51 | 66% | 124.8° |
| 2030-03-25 Mon | 0 | — | unknown | — | 89.6° 12:55 | 8.46 | 55% | 113.1° |
| 2030-03-26 Tue | 0 | — | unknown | — | 89.7° 12:50 | 8.41 | 44% | 101.3° |
| 2030-03-27 Wed | 0 | — | unknown | — | 89.7° 12:45 | 8.35 | 34% | 89.5° |
| 2030-03-28 Thu | 0 | — | unknown | — | 89.6° 12:40 | 8.3 | 24% | 77.9° |
| 2030-03-29 Fri | 0 | — | unknown | — | 89.5° 12:40 | 8.24 | 16% | 66.7° |
| 2030-03-30 Sat | 0 | — | unknown | — | 89.7° 12:35 | 8.19 | 9% | 56.0° |
| 2030-03-31 Sun | 0 | — | unknown | — | 89.7° 13:30 | 8.14 | 4% | 46.2° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2030-03-02&days=30"
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&days=30&format=csv" -o m31-calendar.csvOne row per night: score_astronomy always, score_weather / score only where a forecast or history exists (null otherwise, with weather_source saying which), best window, dark hours, Moon illumination and separation, transit. 7–60 nights. Errors: 400 with invalid_date or target_unresolved. Results are cached for six hours; calculation version 2026-10-10.1.