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: 5/23/2025
| 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 | 05/24/2025 | 22:11:32 | -70.23, 23.24 | 130.79 | 05/24/2025 | 22:12:32 | -70.22, 23.27 | 130.81 | 1.33 | 60 |
| 2 | 05/24/2025 | 23:02:16 | 70.09,-169.24 | 49.07 | 05/24/2025 | 23:01:59 | 70.12,-169.23 | 49.10 | 3.37 | 17 |
| 3 | 05/24/2025 | 23:52:48 | -69.49, -1.03 | 131.56 | 05/24/2025 | 23:51:38 | -69.51, -2.44 | 131.51 | 55.02 | 70 |
| 4 | 05/27/2025 | 14:28:29 | -70.19, 139.06 | 131.28 | 05/27/2025 | 14:29:00 | -70.19, 139.09 | 131.30 | 1.74 | 31 |
| 5 | 05/27/2025 | 15:19:13 | 70.06, -53.43 | 48.57 | 05/27/2025 | 15:18:27 | 70.08, -53.41 | 48.60 | 3.00 | 46 |
| 6 | 05/30/2025 | 05:54:46 | 70.34, 87.27 | 48.46 | 05/30/2025 | 05:55:57 | 70.30, 87.51 | 48.41 | 9.99 | 71 |
| 7 | 05/30/2025 | 06:45:25 | -70.11,-105.05 | 131.78 | 05/30/2025 | 06:45:28 | -70.13,-105.10 | 131.76 | 2.91 | 3 |
| 8 | 05/30/2025 | 07:36:08 | 69.97, 62.46 | 48.07 | 05/30/2025 | 07:34:55 | 69.97, 62.32 | 48.08 | 5.56 | 73 |
| 9 | 06/01/2025 | 22:11:40 | 70.21,-156.76 | 47.96 | 06/01/2025 | 22:12:24 | 70.22,-156.72 | 47.97 | 2.29 | 44 |
| 10 | 06/01/2025 | 23:02:21 | -70.08, 10.75 | 132.18 | 06/01/2025 | 23:01:54 | -70.11, 10.76 | 132.15 | 3.24 | 27 |
| 11 | 06/04/2025 | 13:38:06 | -71.00, 150.41 | 131.53 | 06/04/2025 | 13:39:13 | -70.89, 152.52 | 131.70 | 77.46 | 67 |
| 12 | 06/04/2025 | 14:28:37 | 70.19, -40.97 | 47.62 | 06/04/2025 | 14:28:51 | 70.18, -40.89 | 47.61 | 2.90 | 14 |
| 13 | 06/04/2025 | 15:19:18 | -70.06, 126.54 | 132.52 | 06/04/2025 | 15:18:21 | -70.08, 126.59 | 132.50 | 2.37 | 57 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/23/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/23/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9