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: 5/16/2025
| 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 | 05/18/2025 | 07:09:07 | 70.11, 68.65 | 50.41 | 05/18/2025 | 07:10:17 | 70.12, 68.70 | 50.41 | 2.12 | 70 |
| 2 | 05/18/2025 | 07:59:49 | -70.00,-123.86 | 129.71 | 05/18/2025 | 07:59:47 | -70.00,-123.83 | 129.72 | 1.27 | 2 |
| 3 | 05/18/2025 | 08:50:29 | 69.69, 43.91 | 49.96 | 05/18/2025 | 08:49:17 | 69.73, 43.45 | 50.02 | 18.60 | 72 |
| 4 | 05/20/2025 | 23:26:02 | 70.06,-175.50 | 49.80 | 05/20/2025 | 23:26:45 | 70.07,-175.49 | 49.80 | 1.30 | 43 |
| 5 | 05/21/2025 | 00:16:44 | -69.94, -8.01 | 130.33 | 05/21/2025 | 00:16:15 | -69.95, -8.02 | 130.32 | 1.19 | 29 |
| 6 | 05/23/2025 | 14:52:28 | -70.83, 131.72 | 129.91 | 05/23/2025 | 14:53:36 | -70.70, 133.67 | 130.10 | 73.12 | 68 |
| 7 | 05/23/2025 | 15:42:58 | 70.01, -59.66 | 49.23 | 05/23/2025 | 15:43:14 | 70.00, -59.71 | 49.21 | 2.31 | 16 |
| 8 | 05/23/2025 | 16:33:40 | -69.89, 107.83 | 130.90 | 05/23/2025 | 16:32:44 | -69.89, 107.77 | 130.91 | 2.52 | 56 |
| 9 | 05/26/2025 | 07:09:11 | -70.11,-111.36 | 131.15 | 05/26/2025 | 07:10:14 | -70.12,-111.30 | 131.14 | 2.83 | 63 |
| 10 | 05/26/2025 | 07:59:54 | 69.97, 56.17 | 48.71 | 05/26/2025 | 07:59:42 | 69.96, 56.12 | 48.70 | 2.09 | 12 |
| 11 | 05/26/2025 | 08:50:29 | -69.48,-135.79 | 131.81 | 05/26/2025 | 08:49:18 | -69.52,-136.85 | 131.74 | 41.40 | 71 |
| 12 | 05/28/2025 | 23:26:07 | -70.07, 4.47 | 131.62 | 05/28/2025 | 23:26:42 | -70.07, 4.51 | 131.63 | 1.51 | 35 |
| 13 | 05/29/2025 | 00:16:50 | 69.93, 171.99 | 48.23 | 05/29/2025 | 00:16:09 | 69.96, 172.00 | 48.26 | 2.70 | 41 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/16/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 05/16/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9