Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/22/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 05/22/2025 | 05:54:47 | -70.87, -93.54 | 129.63 | 05/22/2025 | 05:55:55 | -70.77, -91.81 | 129.77 | 64.28 | 68 |
| 2 | 05/22/2025 | 06:45:20 | 70.16, 74.90 | 49.63 | 05/22/2025 | 06:45:32 | 70.13, 74.89 | 49.60 | 3.40 | 12 |
| 3 | 05/22/2025 | 07:36:01 | -70.03,-117.58 | 130.51 | 05/22/2025 | 07:35:01 | -70.06,-117.57 | 130.48 | 3.41 | 60 |
| 4 | 05/24/2025 | 22:11:31 | -70.20, 23.29 | 130.82 | 05/24/2025 | 22:12:32 | -70.20, 23.23 | 130.83 | 2.18 | 61 |
| 5 | 05/24/2025 | 23:02:16 | 70.11,-169.27 | 49.09 | 05/24/2025 | 23:01:59 | 70.10,-169.26 | 49.07 | 1.64 | 17 |
| 6 | 05/24/2025 | 23:52:47 | -69.46, -0.98 | 131.59 | 05/24/2025 | 23:51:37 | -69.54, -2.40 | 131.48 | 55.91 | 70 |
| 7 | 05/27/2025 | 14:28:28 | -70.16, 139.11 | 131.32 | 05/27/2025 | 14:29:00 | -70.16, 139.06 | 131.32 | 1.98 | 32 |
| 8 | 05/27/2025 | 15:19:13 | 70.08, -53.46 | 48.59 | 05/27/2025 | 15:18:27 | 70.05, -53.45 | 48.57 | 2.67 | 46 |
| 9 | 05/30/2025 | 05:54:45 | 70.31, 87.32 | 48.43 | 05/30/2025 | 05:55:57 | 70.26, 87.46 | 48.37 | 7.27 | 72 |
| 10 | 05/30/2025 | 06:45:25 | -70.13,-105.09 | 131.76 | 05/30/2025 | 06:45:27 | -70.15,-105.07 | 131.74 | 2.21 | 2 |
| 11 | 05/30/2025 | 07:36:08 | 69.94, 62.51 | 48.04 | 05/30/2025 | 07:34:55 | 69.99, 62.34 | 48.10 | 8.19 | 73 |
| 12 | 06/01/2025 | 22:11:40 | 70.18,-156.72 | 47.93 | 06/01/2025 | 22:12:25 | 70.18,-156.78 | 47.92 | 2.51 | 45 |
| 13 | 06/01/2025 | 23:02:22 | -70.11, 10.71 | 132.16 | 06/01/2025 | 23:01:54 | -70.12, 10.77 | 132.14 | 2.93 | 28 |
| 14 | 06/04/2025 | 13:38:05 | -70.97, 150.46 | 131.56 | 06/04/2025 | 13:39:13 | -70.84, 152.44 | 131.75 | 73.46 | 68 |
| 15 | 06/04/2025 | 14:28:36 | 70.16, -40.92 | 47.59 | 06/04/2025 | 14:28:50 | 70.18, -40.89 | 47.61 | 3.01 | 14 |
| 16 | 06/04/2025 | 15:19:17 | -70.03, 126.59 | 132.55 | 06/04/2025 | 15:18:21 | -70.02, 126.51 | 132.56 | 3.18 | 56 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/22/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9