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: 6/16/2025
| 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 | 06/17/2025 | 22:11:50 | 70.16,-156.74 | 46.71 | 06/17/2025 | 22:12:39 | 70.17,-156.68 | 46.72 | 2.60 | 49 |
| 2 | 06/17/2025 | 23:02:31 | -70.05, 10.75 | 133.41 | 06/17/2025 | 23:02:09 | -70.06, 10.79 | 133.40 | 1.97 | 22 |
| 3 | 06/17/2025 | 23:52:58 | 68.99, 179.58 | 45.50 | 06/17/2025 | 23:51:52 | 69.08, 177.10 | 45.67 | 99.22 | 66 |
| 4 | 06/20/2025 | 14:28:46 | 70.13, -40.92 | 46.65 | 06/20/2025 | 14:29:11 | 70.11, -40.89 | 46.62 | 1.90 | 25 |
| 5 | 06/20/2025 | 15:19:27 | -70.01, 126.58 | 133.48 | 06/20/2025 | 15:18:41 | -70.00, 126.58 | 133.48 | 1.13 | 46 |
| 6 | 06/23/2025 | 05:55:01 | -70.39, -92.88 | 133.06 | 06/23/2025 | 05:56:13 | -70.30, -92.39 | 133.18 | 21.19 | 72 |
| 7 | 06/23/2025 | 06:45:42 | 70.10, 74.89 | 46.63 | 06/23/2025 | 06:45:42 | 70.08, 74.94 | 46.62 | 2.51 | 0 |
| 8 | 06/23/2025 | 07:36:23 | -69.98,-117.61 | 133.49 | 06/23/2025 | 07:35:12 | -69.98,-117.57 | 133.49 | 1.46 | 71 |
| 9 | 06/25/2025 | 22:11:53 | -70.16, 23.26 | 133.24 | 06/25/2025 | 22:12:46 | -70.15, 23.27 | 133.26 | 1.02 | 53 |
| 10 | 06/25/2025 | 23:02:36 | 70.02,-169.23 | 46.62 | 06/25/2025 | 23:02:12 | 70.04,-169.24 | 46.64 | 1.89 | 24 |
| 11 | 06/25/2025 | 23:53:03 | -69.15, -0.65 | 134.28 | 06/25/2025 | 23:51:55 | -69.22, -2.72 | 134.14 | 82.21 | 68 |
| 12 | 06/28/2025 | 14:28:47 | -70.08, 139.14 | 133.20 | 06/28/2025 | 14:29:16 | -70.09, 139.07 | 133.20 | 2.86 | 29 |
| 13 | 06/28/2025 | 15:19:32 | 70.00, -53.43 | 46.72 | 06/28/2025 | 15:18:42 | 70.03, -53.37 | 46.75 | 3.51 | 50 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/16/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/16/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9