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: 7/13/2025
| 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 | 07:10:06 | -69.96,-111.30 | 131.82 | 07/13/2025 | 07:10:34 | -69.97,-111.38 | 131.82 | 3.20 | 28 |
| 2 | 07/13/2025 | 08:00:51 | 69.87, 56.14 | 48.10 | 07/13/2025 | 08:00:01 | 69.87, 56.12 | 48.10 | 0.93 | 50 |
| 3 | 07/15/2025 | 22:36:23 | 70.20,-163.21 | 48.85 | 07/15/2025 | 22:37:34 | 70.14,-162.89 | 48.76 | 13.67 | 71 |
| 4 | 07/15/2025 | 23:27:02 | -69.97, 4.46 | 131.39 | 07/15/2025 | 23:27:05 | -69.98, 4.51 | 131.39 | 2.43 | 3 |
| 5 | 07/16/2025 | 00:17:46 | 69.83, 171.97 | 48.47 | 07/16/2025 | 00:16:33 | 69.82, 171.93 | 48.47 | 2.22 | 73 |
| 6 | 07/18/2025 | 14:53:14 | 70.01, -47.14 | 49.10 | 07/18/2025 | 14:54:06 | 70.03, -47.18 | 49.11 | 2.68 | 52 |
| 7 | 07/18/2025 | 15:43:56 | -69.93, 120.29 | 130.97 | 07/18/2025 | 15:43:36 | -69.92, 120.31 | 130.98 | 1.30 | 20 |
| 8 | 07/18/2025 | 16:34:24 | 68.95, -70.99 | 48.01 | 07/18/2025 | 16:33:18 | 68.98, -73.31 | 48.15 | 92.74 | 66 |
| 9 | 07/21/2025 | 07:10:09 | 69.97, 68.68 | 49.57 | 07/21/2025 | 07:10:37 | 70.00, 68.66 | 49.60 | 3.34 | 28 |
| 10 | 07/21/2025 | 08:00:51 | -69.90,-123.89 | 130.50 | 07/21/2025 | 08:00:07 | -69.90,-123.84 | 130.49 | 1.98 | 44 |
| 11 | 07/23/2025 | 22:36:26 | -70.39, 16.50 | 129.46 | 07/23/2025 | 22:37:37 | -70.30, 17.33 | 129.59 | 32.38 | 71 |
| 12 | 07/23/2025 | 23:27:04 | 69.95,-175.51 | 50.09 | 07/23/2025 | 23:27:08 | 69.97,-175.51 | 50.11 | 2.33 | 4 |
| 13 | 07/24/2025 | 00:17:46 | -69.87, -8.07 | 129.99 | 07/24/2025 | 00:16:38 | -69.87, -8.01 | 129.98 | 2.44 | 68 |
| 14 | 07/26/2025 | 14:53:15 | -70.05, 132.81 | 129.24 | 07/26/2025 | 14:54:12 | -70.04, 132.83 | 129.26 | 1.32 | 57 |
| 15 | 07/26/2025 | 15:43:59 | 69.92, -59.70 | 50.64 | 07/26/2025 | 15:43:39 | 69.92, -59.70 | 50.64 | 0.71 | 20 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/13/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/13/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9