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: 9/30/2025
| 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 | 10/01/2025 | 07:09:48 | -70.41,-111.77 | 106.37 | 10/01/2025 | 07:10:59 | -70.26,-111.00 | 106.53 | 33.20 | 71 |
| 2 | 10/01/2025 | 08:00:25 | 69.94, 56.26 | 73.17 | 10/01/2025 | 08:00:30 | 69.94, 56.19 | 73.17 | 2.78 | 5 |
| 3 | 10/01/2025 | 08:51:07 | -69.84,-136.27 | 106.92 | 10/01/2025 | 08:50:00 | -69.83,-136.34 | 106.94 | 3.00 | 67 |
| 4 | 10/03/2025 | 23:26:33 | -70.03, 4.61 | 105.73 | 10/03/2025 | 23:27:31 | -70.03, 4.55 | 105.73 | 2.23 | 58 |
| 5 | 10/04/2025 | 00:17:17 | 69.93, 172.07 | 74.19 | 10/04/2025 | 00:16:58 | 69.92, 172.05 | 74.18 | 1.33 | 19 |
| 6 | 10/04/2025 | 01:07:47 | -69.19, -19.54 | 106.54 | 10/04/2025 | 01:06:38 | -69.26, -21.21 | 106.47 | 66.57 | 69 |
| 7 | 10/06/2025 | 15:43:25 | -70.03, 120.40 | 104.70 | 10/06/2025 | 15:43:58 | -70.02, 120.44 | 104.71 | 1.37 | 33 |
| 8 | 10/06/2025 | 16:34:09 | 69.93, -72.14 | 75.22 | 10/06/2025 | 16:33:25 | 69.91, -72.07 | 75.20 | 3.28 | 44 |
| 9 | 10/09/2025 | 07:09:40 | 70.41, 68.29 | 76.70 | 10/09/2025 | 07:10:51 | 70.31, 69.10 | 76.59 | 32.51 | 71 |
| 10 | 10/09/2025 | 08:00:16 | -69.98,-123.74 | 103.72 | 10/09/2025 | 08:00:25 | -69.98,-123.73 | 103.73 | 0.66 | 9 |
| 11 | 10/09/2025 | 08:51:00 | 69.89, 43.71 | 76.20 | 10/09/2025 | 08:49:52 | 69.87, 43.76 | 76.17 | 3.09 | 68 |
| 12 | 10/11/2025 | 23:26:24 | 70.06,-175.38 | 77.36 | 10/11/2025 | 23:27:20 | 70.05,-175.36 | 77.35 | 1.01 | 56 |
| 13 | 10/12/2025 | 00:17:06 | -69.95, -7.90 | 102.74 | 10/12/2025 | 00:16:50 | -69.95, -7.88 | 102.75 | 1.03 | 16 |
| 14 | 10/12/2025 | 01:07:37 | 69.17, 160.55 | 76.49 | 10/12/2025 | 01:06:28 | 69.22, 158.79 | 76.54 | 70.08 | 69 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/30/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/30/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9