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: 10/20/2025
| 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 | 10/22/2025 | 15:43:31 | -70.03, 120.41 | 98.79 | 10/22/2025 | 15:44:07 | -70.02, 120.41 | 98.80 | 0.41 | 36 |
| 2 | 10/22/2025 | 16:34:15 | 69.90, -72.09 | 81.10 | 10/22/2025 | 16:33:34 | 69.92, -72.10 | 81.11 | 2.13 | 41 |
| 3 | 10/25/2025 | 07:09:52 | 70.21, 68.56 | 82.32 | 10/25/2025 | 07:11:03 | 70.14, 68.83 | 82.25 | 12.74 | 71 |
| 4 | 10/25/2025 | 08:00:31 | -69.96,-123.75 | 97.92 | 10/25/2025 | 08:00:34 | -69.98,-123.77 | 97.91 | 1.64 | 3 |
| 5 | 10/25/2025 | 08:51:14 | 69.78, 43.83 | 81.91 | 10/25/2025 | 08:50:02 | 69.81, 43.64 | 81.94 | 7.98 | 72 |
| 6 | 10/27/2025 | 23:26:51 | 70.05,-175.45 | 83.06 | 10/27/2025 | 23:27:31 | 70.05,-175.41 | 83.06 | 1.34 | 40 |
| 7 | 10/28/2025 | 00:17:32 | -69.91, -7.92 | 97.07 | 10/28/2025 | 00:17:01 | -69.94, -7.93 | 97.04 | 3.46 | 31 |
| 8 | 10/30/2025 | 14:53:15 | -70.50, 132.29 | 95.62 | 10/30/2025 | 14:54:25 | -70.41, 133.36 | 95.70 | 41.12 | 70 |
| 9 | 10/30/2025 | 15:43:51 | 69.95, -59.55 | 83.85 | 10/30/2025 | 15:43:58 | 69.97, -59.63 | 83.86 | 3.44 | 7 |
| 10 | 10/30/2025 | 16:34:33 | -69.87, 107.90 | 96.23 | 10/30/2025 | 16:33:28 | -69.86, 107.86 | 96.24 | 1.62 | 65 |
| 11 | 11/02/2025 | 07:10:08 | -70.05,-111.25 | 95.22 | 11/02/2025 | 07:10:56 | -70.07,-111.23 | 95.19 | 3.32 | 48 |
| 12 | 11/02/2025 | 08:00:53 | 69.97, 56.17 | 84.73 | 11/02/2025 | 08:00:23 | 69.95, 56.25 | 84.71 | 3.54 | 30 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/20/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/20/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9