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: 9/8/2025
| 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 | 09/09/2025 | 23:26:54 | 70.00,-175.47 | 64.99 | 09/09/2025 | 23:27:29 | 70.00,-175.49 | 64.99 | 0.95 | 35 |
| 2 | 09/10/2025 | 00:17:36 | -69.90, -8.00 | 115.10 | 09/10/2025 | 00:16:59 | -69.88, -8.02 | 115.12 | 1.95 | 37 |
| 3 | 09/12/2025 | 14:53:14 | -70.65, 131.98 | 113.34 | 09/12/2025 | 14:54:23 | -70.55, 133.55 | 113.47 | 58.78 | 69 |
| 4 | 09/12/2025 | 15:43:47 | 69.97, -59.65 | 65.98 | 09/12/2025 | 15:43:59 | 69.96, -59.67 | 65.96 | 1.99 | 12 |
| 5 | 09/12/2025 | 16:34:28 | -69.87, 107.83 | 114.12 | 09/12/2025 | 16:33:28 | -69.84, 107.81 | 114.14 | 2.66 | 60 |
| 6 | 09/15/2025 | 07:09:55 | -70.05,-111.29 | 112.94 | 09/15/2025 | 07:11:00 | -70.05,-111.29 | 112.94 | 0.87 | 65 |
| 7 | 09/15/2025 | 08:00:39 | 69.95, 56.17 | 66.98 | 09/15/2025 | 08:00:27 | 69.95, 56.20 | 66.98 | 1.50 | 12 |
| 8 | 09/15/2025 | 08:51:14 | -69.47,-135.81 | 113.50 | 09/15/2025 | 08:50:03 | -69.51,-136.77 | 113.44 | 37.53 | 71 |
| 9 | 09/17/2025 | 23:26:48 | -70.03, 4.53 | 111.93 | 09/17/2025 | 23:27:29 | -70.02, 4.55 | 111.93 | 1.05 | 41 |
| 10 | 09/18/2025 | 00:17:31 | 69.89, 172.05 | 67.95 | 09/18/2025 | 00:16:56 | 69.91, 172.04 | 67.98 | 3.29 | 35 |
| 11 | 09/20/2025 | 14:53:10 | 70.71, -48.08 | 69.80 | 09/20/2025 | 14:54:18 | 70.62, -46.32 | 69.69 | 65.74 | 68 |
| 12 | 09/20/2025 | 15:43:40 | -69.96, 120.41 | 110.96 | 09/20/2025 | 15:43:58 | -69.97, 120.36 | 110.95 | 1.95 | 18 |
| 13 | 09/20/2025 | 16:34:24 | 69.88, -72.15 | 68.97 | 09/20/2025 | 16:33:25 | 69.86, -72.15 | 68.95 | 1.99 | 59 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/8/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/08/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9