Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/17/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 04/18/2025 | 23:25:46 | 70.74,-176.48 | 59.53 | 04/18/2025 | 23:26:54 | 70.64,-174.66 | 59.38 | 67.94 | 68 |
| 2 | 04/19/2025 | 00:16:15 | -69.96, -7.95 | 121.29 | 04/19/2025 | 00:16:34 | -69.98, -7.99 | 121.28 | 2.00 | 19 |
| 3 | 04/19/2025 | 01:07:00 | 69.89, 159.46 | 58.62 | 04/19/2025 | 01:06:01 | 69.87, 159.51 | 58.61 | 3.02 | 59 |
| 4 | 04/21/2025 | 15:42:31 | 70.07, -59.67 | 57.92 | 04/21/2025 | 15:43:30 | 70.05, -59.63 | 57.89 | 2.76 | 59 |
| 5 | 04/21/2025 | 16:33:12 | -69.93, 107.86 | 122.25 | 04/21/2025 | 16:33:00 | -69.94, 107.85 | 122.24 | 1.85 | 12 |
| 6 | 04/21/2025 | 17:23:46 | 69.28, -83.88 | 57.07 | 04/21/2025 | 17:22:36 | 69.33, -85.33 | 57.17 | 57.43 | 70 |
| 7 | 04/24/2025 | 07:59:28 | 70.00, 56.20 | 56.95 | 04/24/2025 | 07:59:56 | 70.02, 56.22 | 56.97 | 2.85 | 28 |
| 8 | 04/24/2025 | 08:50:10 | -69.90,-136.34 | 123.17 | 04/24/2025 | 08:49:26 | -69.92,-136.30 | 123.15 | 2.17 | 44 |
| 9 | 04/26/2025 | 23:25:43 | -70.15, 4.42 | 123.76 | 04/26/2025 | 23:26:54 | -70.12, 4.60 | 123.80 | 7.47 | 71 |
| 10 | 04/27/2025 | 00:16:25 | 69.94, 172.05 | 56.01 | 04/27/2025 | 00:16:22 | 69.95, 172.01 | 56.02 | 2.12 | 3 |
| 11 | 04/27/2025 | 01:07:06 | -69.78, -20.40 | 124.16 | 04/27/2025 | 01:05:53 | -69.79, -20.59 | 124.15 | 7.31 | 73 |
| 12 | 04/29/2025 | 15:42:39 | -70.04, 120.35 | 124.71 | 04/29/2025 | 15:43:19 | -70.05, 120.40 | 124.71 | 2.61 | 40 |
| 13 | 04/29/2025 | 16:33:23 | 69.94, -72.19 | 55.18 | 04/29/2025 | 16:32:46 | 69.94, -72.12 | 55.17 | 2.91 | 37 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/17/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/17/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9