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: 8/12/2025
| 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 | 08/14/2025 | 06:20:31 | -70.10, -98.82 | 124.19 | 08/14/2025 | 06:21:22 | -70.10, -98.87 | 124.20 | 1.59 | 51 |
| 2 | 08/14/2025 | 07:11:15 | 70.02, 68.62 | 55.74 | 08/14/2025 | 07:10:49 | 70.00, 68.63 | 55.72 | 2.12 | 26 |
| 3 | 08/14/2025 | 08:01:40 | -69.00,-122.59 | 125.32 | 08/14/2025 | 08:00:34 | -69.06,-125.00 | 125.16 | 95.97 | 66 |
| 4 | 08/16/2025 | 22:37:26 | -70.10, 16.95 | 123.35 | 08/16/2025 | 22:37:52 | -70.09, 17.00 | 123.37 | 2.31 | 26 |
| 5 | 08/16/2025 | 23:28:09 | 69.97,-175.53 | 56.52 | 08/16/2025 | 23:27:19 | 69.98,-175.51 | 56.54 | 2.01 | 50 |
| 6 | 08/19/2025 | 14:03:39 | 70.28, -34.88 | 57.69 | 08/19/2025 | 14:04:50 | 70.22, -34.57 | 57.61 | 13.74 | 71 |
| 7 | 08/19/2025 | 14:54:19 | -70.05, 132.79 | 122.54 | 08/19/2025 | 14:54:21 | -70.05, 132.83 | 122.54 | 1.45 | 2 |
| 8 | 08/19/2025 | 15:45:01 | 69.87, -59.61 | 57.28 | 08/19/2025 | 15:43:49 | 69.89, -59.75 | 57.32 | 6.00 | 72 |
| 9 | 08/22/2025 | 06:20:30 | 70.08, 81.20 | 58.37 | 08/22/2025 | 06:21:21 | 70.11, 81.16 | 58.39 | 3.10 | 51 |
| 10 | 08/22/2025 | 07:11:13 | -70.01,-111.37 | 121.70 | 08/22/2025 | 07:10:51 | -70.00,-111.36 | 121.71 | 0.78 | 22 |
| 11 | 08/22/2025 | 08:01:39 | 68.97, 57.44 | 57.24 | 08/22/2025 | 08:00:33 | 69.06, 55.02 | 57.41 | 96.88 | 66 |
| 12 | 08/24/2025 | 22:37:25 | 70.10,-163.05 | 59.30 | 08/24/2025 | 22:37:50 | 70.09,-162.98 | 59.28 | 2.82 | 25 |
| 13 | 08/24/2025 | 23:28:07 | -69.97, 4.46 | 120.83 | 08/24/2025 | 23:27:20 | -69.99, 4.51 | 120.81 | 2.44 | 47 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/12/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/12/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8