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: 6/24/2025
| 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 | 06/25/2025 | 22:11:53 | -70.16, 23.25 | 133.23 | 06/25/2025 | 22:12:46 | -70.14, 23.26 | 133.26 | 2.68 | 53 |
| 2 | 06/25/2025 | 23:02:37 | 70.02,-169.23 | 46.62 | 06/25/2025 | 23:02:13 | 70.04,-169.24 | 46.65 | 2.40 | 24 |
| 3 | 06/25/2025 | 23:53:04 | -69.16, -0.66 | 134.27 | 06/25/2025 | 23:51:56 | -69.21, -2.73 | 134.14 | 81.95 | 68 |
| 4 | 06/28/2025 | 14:28:47 | -70.08, 139.14 | 133.20 | 06/28/2025 | 14:29:16 | -70.09, 139.08 | 133.19 | 2.96 | 29 |
| 5 | 06/28/2025 | 15:19:32 | 69.99, -53.42 | 46.71 | 06/28/2025 | 15:18:43 | 69.99, -53.43 | 46.72 | 0.44 | 49 |
| 6 | 07/01/2025 | 05:55:04 | 70.28, 87.28 | 47.18 | 07/01/2025 | 05:56:15 | 70.25, 87.55 | 47.12 | 10.83 | 71 |
| 7 | 07/01/2025 | 06:45:44 | -70.10,-105.13 | 133.01 | 07/01/2025 | 06:45:46 | -70.09,-105.05 | 133.03 | 3.30 | 2 |
| 8 | 07/01/2025 | 07:36:27 | 69.91, 62.46 | 46.80 | 07/01/2025 | 07:35:14 | 69.92, 62.36 | 46.82 | 3.93 | 73 |
| 9 | 07/03/2025 | 22:11:58 | 70.15,-156.76 | 47.26 | 07/03/2025 | 22:12:46 | 70.17,-156.68 | 47.26 | 3.40 | 48 |
| 10 | 07/03/2025 | 23:02:39 | -70.02, 10.76 | 132.88 | 07/03/2025 | 23:02:17 | -70.01, 10.73 | 132.89 | 1.52 | 22 |
| 11 | 07/06/2025 | 14:28:53 | 70.08, -40.89 | 47.44 | 07/06/2025 | 14:29:17 | 70.08, -40.93 | 47.43 | 1.89 | 24 |
| 12 | 07/06/2025 | 15:19:35 | -69.99, 126.56 | 132.65 | 07/06/2025 | 15:18:47 | -69.98, 126.56 | 132.66 | 1.85 | 48 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/24/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/24/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9