Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/16/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 07/17/2025 | 06:44:47 | 70.02, 74.95 | 48.88 | 07/17/2025 | 06:45:53 | 70.04, 74.88 | 48.89 | 3.35 | 66 |
| 2 | 07/17/2025 | 07:35:29 | -69.95,-117.63 | 131.19 | 07/17/2025 | 07:35:23 | -69.93,-117.64 | 131.21 | 2.43 | 6 |
| 3 | 07/17/2025 | 08:26:07 | 69.49, 50.36 | 48.34 | 07/17/2025 | 08:24:55 | 69.55, 49.49 | 48.44 | 34.42 | 72 |
| 4 | 07/19/2025 | 23:01:42 | 69.98,-169.22 | 49.33 | 07/19/2025 | 23:02:24 | 70.00,-169.29 | 49.34 | 3.14 | 42 |
| 5 | 07/19/2025 | 23:52:24 | -69.91, -1.80 | 130.74 | 07/19/2025 | 23:51:54 | -69.90, -1.81 | 130.76 | 2.05 | 30 |
| 6 | 07/22/2025 | 14:28:08 | -70.87, 137.83 | 129.22 | 07/22/2025 | 14:29:15 | -70.77, 140.08 | 129.42 | 82.79 | 67 |
| 7 | 07/22/2025 | 15:18:37 | 69.95, -53.41 | 49.82 | 07/22/2025 | 15:18:55 | 69.95, -53.48 | 49.81 | 2.90 | 18 |
| 8 | 07/22/2025 | 16:09:19 | -69.88, 114.02 | 130.26 | 07/22/2025 | 16:08:24 | -69.90, 114.08 | 130.23 | 3.41 | 55 |
| 9 | 07/25/2025 | 06:44:47 | -70.06,-105.10 | 129.52 | 07/25/2025 | 06:45:57 | -70.06,-105.10 | 129.54 | 0.10 | 70 |
| 10 | 07/25/2025 | 07:35:31 | 69.93, 62.41 | 50.35 | 07/25/2025 | 07:35:24 | 69.94, 62.39 | 50.37 | 1.79 | 7 |
| 11 | 07/25/2025 | 08:26:09 | -69.64,-129.85 | 129.95 | 07/25/2025 | 08:24:56 | -69.73,-130.27 | 129.83 | 19.42 | 73 |
| 12 | 07/27/2025 | 23:01:42 | -70.03, 10.72 | 128.95 | 07/27/2025 | 23:02:27 | -70.04, 10.76 | 128.95 | 1.68 | 45 |
| 13 | 07/27/2025 | 23:52:26 | 69.91, 178.21 | 50.93 | 07/27/2025 | 23:51:54 | 69.92, 178.24 | 50.95 | 1.91 | 32 |
Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/16/2025
Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 07/16/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-8