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: 7/30/2025
| 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 | 07/31/2025 | 22:36:27 | 70.34,-163.42 | 52.35 | 07/31/2025 | 22:37:38 | 70.21,-162.79 | 52.17 | 27.87 | 71 |
| 2 | 07/31/2025 | 23:27:03 | -69.96, 4.50 | 128.06 | 07/31/2025 | 23:27:11 | -69.94, 4.45 | 128.08 | 2.92 | 8 |
| 3 | 08/01/2025 | 00:17:47 | 69.82, 172.01 | 51.81 | 08/01/2025 | 00:16:38 | 69.83, 171.95 | 51.83 | 2.50 | 69 |
| 4 | 08/03/2025 | 14:53:16 | 70.02, -47.15 | 52.69 | 08/03/2025 | 14:54:10 | 70.03, -47.17 | 52.69 | 1.21 | 54 |
| 5 | 08/03/2025 | 15:43:58 | -69.94, 120.29 | 127.38 | 08/03/2025 | 15:43:40 | -69.92, 120.32 | 127.40 | 2.69 | 18 |
| 6 | 08/03/2025 | 16:34:27 | 69.02, -71.06 | 51.66 | 08/03/2025 | 16:33:20 | 69.09, -73.15 | 51.83 | 83.52 | 67 |
| 7 | 08/06/2025 | 07:10:10 | 70.02, 68.63 | 53.41 | 08/06/2025 | 07:10:38 | 69.99, 68.67 | 53.38 | 3.21 | 28 |
| 8 | 08/06/2025 | 08:00:51 | -69.89,-123.85 | 126.72 | 08/06/2025 | 08:00:08 | -69.89,-123.84 | 126.71 | 0.70 | 43 |
| 9 | 08/08/2025 | 22:36:25 | -70.35, 16.58 | 125.50 | 08/08/2025 | 22:37:37 | -70.22, 17.24 | 125.67 | 28.74 | 72 |
| 10 | 08/08/2025 | 23:27:04 | 69.97,-175.52 | 54.11 | 08/08/2025 | 23:27:07 | 69.94,-175.51 | 54.08 | 3.38 | 3 |
| 11 | 08/09/2025 | 00:17:45 | -69.83, -7.99 | 126.02 | 08/09/2025 | 00:16:37 | -69.84, -8.02 | 126.01 | 1.32 | 68 |
| 12 | 08/11/2025 | 14:53:14 | -70.04, 132.84 | 125.04 | 08/11/2025 | 14:54:08 | -70.04, 132.87 | 125.05 | 1.26 | 54 |
| 13 | 08/11/2025 | 15:43:58 | 69.93, -59.68 | 54.85 | 08/11/2025 | 15:43:35 | 69.92, -59.65 | 54.85 | 1.25 | 23 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/30/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/30/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9