Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/10/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 08/11/2025 | 14:03:39 | -70.25, 145.17 | 124.84 | 08/11/2025 | 14:04:50 | -70.22, 145.42 | 124.90 | 10.34 | 71 |
| 2 | 08/11/2025 | 14:54:21 | 70.06, -47.22 | 54.97 | 08/11/2025 | 14:54:18 | 70.06, -47.15 | 54.97 | 2.66 | 3 |
| 3 | 08/11/2025 | 15:45:02 | -69.89, 120.35 | 125.20 | 08/11/2025 | 15:43:49 | -69.90, 120.24 | 125.18 | 4.09 | 73 |
| 4 | 08/14/2025 | 06:20:31 | -70.09, -98.81 | 124.20 | 08/14/2025 | 06:21:22 | -70.11, -98.85 | 124.18 | 3.14 | 51 |
| 5 | 08/14/2025 | 07:11:15 | 70.01, 68.63 | 55.73 | 08/14/2025 | 07:10:49 | 70.01, 68.65 | 55.73 | 0.74 | 26 |
| 6 | 08/14/2025 | 08:01:41 | -69.04,-122.65 | 125.28 | 08/14/2025 | 08:00:34 | -69.07,-124.98 | 125.15 | 92.72 | 67 |
| 7 | 08/16/2025 | 22:37:26 | -70.09, 16.97 | 123.37 | 08/16/2025 | 22:37:52 | -70.10, 17.01 | 123.36 | 2.15 | 26 |
| 8 | 08/16/2025 | 23:28:08 | 69.95,-175.52 | 56.51 | 08/16/2025 | 23:27:19 | 69.94,-175.57 | 56.50 | 2.93 | 49 |
| 9 | 08/19/2025 | 14:03:39 | 70.27, -34.86 | 57.68 | 08/19/2025 | 14:04:50 | 70.22, -34.56 | 57.61 | 12.62 | 71 |
| 10 | 08/19/2025 | 14:54:19 | -70.04, 132.81 | 122.55 | 08/19/2025 | 14:54:21 | -70.07, 132.85 | 122.53 | 3.15 | 2 |
| 11 | 08/19/2025 | 15:45:02 | 69.91, -59.68 | 57.32 | 08/19/2025 | 15:43:49 | 69.90, -59.74 | 57.32 | 2.70 | 73 |
| 12 | 08/22/2025 | 06:20:31 | 70.13, 81.14 | 58.41 | 08/22/2025 | 06:21:21 | 70.11, 81.17 | 58.39 | 1.76 | 50 |
| 13 | 08/22/2025 | 07:11:13 | -70.00,-111.35 | 121.71 | 08/22/2025 | 07:10:51 | -70.01,-111.34 | 121.70 | 1.71 | 22 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/10/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/10/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8