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: 7/12/2025
| 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 | 07/13/2025 | 07:10:07 | -69.99,-111.35 | 131.79 | 07/13/2025 | 07:10:34 | -70.00,-111.35 | 131.79 | 0.47 | 27 |
| 2 | 07/13/2025 | 08:00:52 | 69.91, 56.09 | 48.13 | 07/13/2025 | 08:00:01 | 69.89, 56.15 | 48.12 | 2.89 | 51 |
| 3 | 07/15/2025 | 22:36:22 | 70.18,-163.18 | 48.82 | 07/15/2025 | 22:37:34 | 70.11,-162.94 | 48.74 | 11.38 | 72 |
| 4 | 07/15/2025 | 23:27:01 | -69.95, 4.49 | 131.42 | 07/15/2025 | 23:27:05 | -69.95, 4.47 | 131.41 | 1.26 | 4 |
| 5 | 07/16/2025 | 00:17:45 | 69.81, 172.00 | 48.45 | 07/16/2025 | 00:16:32 | 69.84, 171.96 | 48.49 | 4.23 | 73 |
| 6 | 07/18/2025 | 14:53:15 | 70.03, -47.18 | 49.13 | 07/18/2025 | 14:54:06 | 70.05, -47.15 | 49.14 | 2.89 | 51 |
| 7 | 07/18/2025 | 15:43:56 | -69.90, 120.33 | 131.00 | 07/18/2025 | 15:43:37 | -69.90, 120.27 | 131.01 | 2.57 | 19 |
| 8 | 07/18/2025 | 16:34:25 | 68.97, -71.02 | 48.03 | 07/18/2025 | 16:33:18 | 69.01, -73.28 | 48.17 | 90.01 | 67 |
| 9 | 07/21/2025 | 07:10:10 | 69.99, 68.65 | 49.59 | 07/21/2025 | 07:10:38 | 69.98, 68.63 | 49.57 | 1.69 | 28 |
| 10 | 07/21/2025 | 08:00:51 | -69.86,-123.83 | 130.54 | 07/21/2025 | 08:00:08 | -69.88,-123.88 | 130.52 | 2.73 | 43 |
| 11 | 07/23/2025 | 22:36:27 | -70.40, 16.49 | 129.45 | 07/23/2025 | 22:37:38 | -70.28, 17.29 | 129.61 | 32.71 | 71 |
| 12 | 07/23/2025 | 23:27:05 | 69.95,-175.52 | 50.10 | 07/23/2025 | 23:27:09 | 69.94,-175.54 | 50.08 | 1.32 | 4 |
| 13 | 07/24/2025 | 00:17:47 | -69.87, -8.08 | 129.99 | 07/24/2025 | 00:16:39 | -69.85, -8.04 | 130.00 | 3.15 | 68 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/12/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/12/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9