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: 5/23/2025
| 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 | 05/23/2025 | 14:52:28 | -70.82, 131.75 | 129.93 | 05/23/2025 | 14:53:36 | -70.73, 133.71 | 130.07 | 72.64 | 68 |
| 2 | 05/23/2025 | 15:42:59 | 70.04, -59.71 | 49.26 | 05/23/2025 | 15:43:14 | 70.03, -59.66 | 49.24 | 1.83 | 15 |
| 3 | 05/23/2025 | 16:33:41 | -69.93, 107.78 | 130.87 | 05/23/2025 | 16:32:44 | -69.91, 107.80 | 130.88 | 2.39 | 57 |
| 4 | 05/26/2025 | 07:09:10 | -70.09,-111.33 | 131.16 | 05/26/2025 | 07:10:14 | -70.10,-111.33 | 131.17 | 0.53 | 64 |
| 5 | 05/26/2025 | 07:59:54 | 70.00, 56.12 | 48.74 | 05/26/2025 | 07:59:41 | 70.00, 56.17 | 48.73 | 1.80 | 13 |
| 6 | 05/26/2025 | 08:50:28 | -69.46,-135.77 | 131.83 | 05/26/2025 | 08:49:17 | -69.55,-136.81 | 131.71 | 41.66 | 71 |
| 7 | 05/28/2025 | 23:26:06 | -70.05, 4.49 | 131.64 | 05/28/2025 | 23:26:42 | -70.05, 4.48 | 131.65 | 0.55 | 36 |
| 8 | 05/29/2025 | 00:16:50 | 69.96, 171.95 | 48.26 | 05/29/2025 | 00:16:09 | 69.95, 171.98 | 48.25 | 2.15 | 41 |
| 9 | 05/31/2025 | 14:52:25 | 70.40, -47.59 | 48.35 | 05/31/2025 | 14:53:36 | 70.32, -46.88 | 48.23 | 28.18 | 71 |
| 10 | 05/31/2025 | 15:43:02 | -70.02, 120.31 | 132.06 | 05/31/2025 | 15:43:09 | -70.04, 120.35 | 132.04 | 2.65 | 7 |
| 11 | 05/31/2025 | 16:33:45 | 69.88, -72.16 | 47.79 | 05/31/2025 | 16:32:37 | 69.88, -72.23 | 47.80 | 2.64 | 68 |
| 12 | 06/03/2025 | 07:09:15 | 70.06, 68.71 | 47.65 | 06/03/2025 | 07:10:07 | 70.07, 68.64 | 47.65 | 2.59 | 52 |
| 13 | 06/03/2025 | 07:59:57 | -69.94,-123.80 | 132.48 | 06/03/2025 | 07:59:37 | -69.96,-123.88 | 132.47 | 3.50 | 20 |
| 14 | 06/03/2025 | 08:50:25 | 69.00, 44.87 | 46.54 | 06/03/2025 | 08:49:18 | 69.07, 42.58 | 46.68 | 91.49 | 67 |
| 15 | 06/05/2025 | 23:26:10 | 70.04,-175.49 | 47.33 | 06/05/2025 | 23:26:33 | 70.02,-175.54 | 47.30 | 2.99 | 23 |
| 16 | 06/06/2025 | 00:16:52 | -69.92, -8.00 | 132.80 | 06/06/2025 | 00:16:03 | -69.91, -8.06 | 132.81 | 2.50 | 49 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/23/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 05/23/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9