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: 10/6/2025
| 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 | 10/06/2025 | 15:43:25 | -70.05, 120.38 | 104.68 | 10/06/2025 | 15:44:04 | -70.04, 120.44 | 104.69 | 2.26 | 39 |
| 2 | 10/06/2025 | 16:34:08 | 69.89, -72.08 | 75.18 | 10/06/2025 | 16:33:32 | 69.89, -72.14 | 75.17 | 2.43 | 36 |
| 3 | 10/09/2025 | 07:09:47 | 70.79, 67.67 | 77.08 | 10/09/2025 | 07:10:55 | 70.70, 69.64 | 76.99 | 73.00 | 68 |
| 4 | 10/09/2025 | 08:00:16 | -70.00,-123.77 | 103.70 | 10/09/2025 | 08:00:36 | -69.99,-123.76 | 103.72 | 1.51 | 20 |
| 5 | 10/09/2025 | 08:51:00 | 69.90, 43.69 | 76.21 | 10/09/2025 | 08:50:03 | 69.89, 43.74 | 76.19 | 2.52 | 57 |
| 6 | 10/11/2025 | 23:26:24 | 70.07,-175.40 | 77.37 | 10/11/2025 | 23:27:36 | 70.07,-175.41 | 77.36 | 1.07 | 72 |
| 7 | 10/12/2025 | 00:17:06 | -69.97, -7.93 | 102.72 | 10/12/2025 | 00:17:06 | -69.96, -7.93 | 102.74 | 1.37 | 0 |
| 8 | 10/12/2025 | 01:07:47 | 69.71, 159.77 | 77.03 | 10/12/2025 | 01:06:35 | 69.74, 159.41 | 77.06 | 14.10 | 72 |
| 9 | 10/14/2025 | 15:43:15 | 70.05, -59.57 | 78.35 | 10/14/2025 | 15:44:06 | 70.05, -59.55 | 78.34 | 0.71 | 51 |
| 10 | 10/14/2025 | 16:33:57 | -69.95, 107.90 | 101.75 | 10/14/2025 | 16:33:36 | -69.95, 107.93 | 101.75 | 1.45 | 21 |
| 11 | 10/14/2025 | 17:24:24 | 68.95, -83.35 | 77.27 | 10/14/2025 | 17:23:18 | 69.01, -85.69 | 77.32 | 93.56 | 66 |
| 12 | 10/17/2025 | 08:00:05 | 69.99, 56.32 | 79.26 | 10/17/2025 | 08:00:36 | 70.00, 56.26 | 79.28 | 3.04 | 31 |
| 13 | 10/17/2025 | 08:50:47 | -69.88,-136.21 | 100.83 | 10/17/2025 | 08:50:06 | -69.90,-136.25 | 100.81 | 2.55 | 41 |
| 14 | 10/19/2025 | 23:26:21 | -70.55, 3.92 | 99.22 | 10/19/2025 | 23:27:31 | -70.47, 5.18 | 99.29 | 47.49 | 70 |
| 15 | 10/20/2025 | 00:16:56 | 69.98, 172.12 | 80.23 | 10/20/2025 | 00:17:05 | 69.97, 172.10 | 80.22 | 1.24 | 9 |
| 16 | 10/20/2025 | 01:07:38 | -69.88, -20.41 | 99.87 | 10/20/2025 | 01:06:35 | -69.87, -20.40 | 99.87 | 0.52 | 63 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/6/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/06/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9