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: 10/25/2025
| 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 | 10/25/2025 | 07:09:53 | 70.22, 68.54 | 82.32 | 10/25/2025 | 07:11:04 | 70.14, 68.82 | 82.24 | 13.62 | 71 |
| 2 | 10/25/2025 | 08:00:32 | -69.98,-123.77 | 97.91 | 10/25/2025 | 08:00:35 | -69.97,-123.79 | 97.92 | 1.04 | 3 |
| 3 | 10/25/2025 | 08:51:15 | 69.79, 43.82 | 81.92 | 10/25/2025 | 08:50:03 | 69.81, 43.64 | 81.94 | 7.34 | 72 |
| 4 | 10/27/2025 | 23:26:51 | 70.06,-175.46 | 83.07 | 10/27/2025 | 23:27:31 | 70.06,-175.40 | 83.08 | 2.47 | 40 |
| 5 | 10/28/2025 | 00:17:32 | -69.92, -7.94 | 97.06 | 10/28/2025 | 00:17:01 | -69.95, -7.92 | 97.03 | 3.26 | 31 |
| 6 | 10/30/2025 | 14:53:15 | -70.51, 132.27 | 95.60 | 10/30/2025 | 14:54:26 | -70.39, 133.33 | 95.72 | 41.54 | 71 |
| 7 | 10/30/2025 | 15:43:52 | 70.01, -59.64 | 83.91 | 10/30/2025 | 15:43:58 | 70.01, -59.58 | 83.90 | 2.44 | 6 |
| 8 | 10/30/2025 | 16:34:33 | -69.88, 107.88 | 96.22 | 10/30/2025 | 16:33:28 | -69.90, 107.90 | 96.20 | 2.49 | 65 |
| 9 | 11/02/2025 | 07:10:08 | -70.06,-111.27 | 95.20 | 11/02/2025 | 07:10:58 | -70.03,-111.29 | 95.23 | 2.80 | 50 |
| 10 | 11/02/2025 | 08:00:52 | 69.93, 56.24 | 84.68 | 11/02/2025 | 08:00:25 | 69.92, 56.19 | 84.67 | 2.00 | 27 |
| 11 | 11/02/2025 | 08:51:17 | -68.94,-135.03 | 96.29 | 11/02/2025 | 08:50:10 | -68.99,-137.42 | 96.26 | 95.82 | 67 |
| 12 | 11/04/2025 | 22:36:37 | 70.64,-163.76 | 86.21 | 11/04/2025 | 22:37:46 | 70.51,-162.33 | 86.08 | 54.74 | 69 |
| 13 | 11/04/2025 | 23:27:09 | -70.03, 4.52 | 94.40 | 11/04/2025 | 23:27:23 | -70.03, 4.59 | 94.41 | 2.85 | 14 |
| 14 | 11/05/2025 | 00:17:53 | 69.90, 172.03 | 85.49 | 11/05/2025 | 00:16:50 | 69.91, 172.07 | 85.49 | 1.91 | 63 |
| 15 | 11/07/2025 | 14:53:26 | 70.05, -47.07 | 86.41 | 11/07/2025 | 14:54:18 | 70.03, -47.13 | 86.39 | 3.16 | 52 |
| 16 | 11/07/2025 | 15:44:08 | -69.97, 120.38 | 93.67 | 11/07/2025 | 15:43:47 | -69.98, 120.44 | 93.65 | 2.95 | 21 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/25/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/25/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9