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: 10/28/2025
| 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 | 10/30/2025 | 14:53:15 | -70.51, 132.28 | 95.61 | 10/30/2025 | 14:54:26 | -70.40, 133.34 | 95.72 | 41.20 | 71 |
| 2 | 10/30/2025 | 15:43:52 | 70.00, -59.63 | 83.90 | 10/30/2025 | 15:43:58 | 70.02, -59.57 | 83.92 | 2.97 | 6 |
| 3 | 10/30/2025 | 16:34:33 | -69.87, 107.89 | 96.22 | 10/30/2025 | 16:33:29 | -69.85, 107.83 | 96.25 | 3.12 | 64 |
| 4 | 11/02/2025 | 07:10:08 | -70.05,-111.25 | 95.21 | 11/02/2025 | 07:10:58 | -70.05,-111.28 | 95.22 | 0.87 | 50 |
| 5 | 11/02/2025 | 08:00:52 | 69.91, 56.26 | 84.67 | 11/02/2025 | 08:00:25 | 69.94, 56.21 | 84.69 | 3.13 | 27 |
| 6 | 11/02/2025 | 08:51:17 | -68.93,-135.01 | 96.30 | 11/02/2025 | 08:50:11 | -68.94,-137.48 | 96.30 | 98.52 | 66 |
| 7 | 11/04/2025 | 22:36:37 | 70.62,-163.73 | 86.19 | 11/04/2025 | 22:37:46 | 70.54,-162.30 | 86.10 | 53.81 | 69 |
| 8 | 11/04/2025 | 23:27:09 | -70.02, 4.54 | 94.41 | 11/04/2025 | 23:27:24 | -69.99, 4.54 | 94.44 | 3.01 | 15 |
| 9 | 11/05/2025 | 00:17:53 | 69.88, 172.05 | 85.47 | 11/05/2025 | 00:16:51 | 69.88, 172.03 | 85.46 | 1.24 | 62 |
| 10 | 11/07/2025 | 14:53:27 | 70.08, -47.11 | 86.44 | 11/07/2025 | 14:54:18 | 70.06, -47.09 | 86.42 | 1.93 | 51 |
| 11 | 11/07/2025 | 15:44:08 | -69.94, 120.41 | 93.69 | 11/07/2025 | 15:43:48 | -69.96, 120.40 | 93.68 | 1.60 | 20 |
| 12 | 11/07/2025 | 16:34:36 | 68.96, -70.87 | 85.34 | 11/07/2025 | 16:33:30 | 69.01, -73.23 | 85.39 | 94.45 | 66 |
| 13 | 11/10/2025 | 06:19:57 | -70.88, -99.95 | 92.01 | 11/10/2025 | 06:21:04 | -70.77, -97.79 | 92.11 | 79.68 | 67 |
| 14 | 11/10/2025 | 07:10:27 | 70.01, 68.74 | 87.14 | 11/10/2025 | 07:10:43 | 70.00, 68.72 | 87.12 | 2.09 | 16 |
| 15 | 11/10/2025 | 08:01:08 | -69.88,-123.74 | 92.99 | 11/10/2025 | 08:00:13 | -69.89,-123.79 | 92.98 | 2.54 | 55 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/28/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/28/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9