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: 5/12/2025
| 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 | 05/12/2025 | 22:36:41 | -70.17, 17.04 | 128.29 | 05/12/2025 | 22:37:11 | -70.16, 17.09 | 128.31 | 2.94 | 30 |
| 2 | 05/12/2025 | 23:27:25 | 70.05,-175.47 | 51.58 | 05/12/2025 | 23:26:38 | 70.06,-175.40 | 51.59 | 2.52 | 47 |
| 3 | 05/15/2025 | 14:02:59 | 70.36, -34.81 | 51.28 | 05/15/2025 | 14:04:10 | 70.31, -34.44 | 51.21 | 15.22 | 71 |
| 4 | 05/15/2025 | 14:53:38 | -70.11, 132.89 | 128.99 | 05/15/2025 | 14:53:42 | -70.09, 132.88 | 129.02 | 2.95 | 4 |
| 5 | 05/15/2025 | 15:44:22 | 69.99, -59.62 | 50.88 | 05/15/2025 | 15:43:09 | 69.98, -59.62 | 50.88 | 0.94 | 73 |
| 6 | 05/18/2025 | 06:19:53 | 70.15, 81.28 | 50.45 | 05/18/2025 | 06:20:42 | 70.16, 81.23 | 50.46 | 2.23 | 49 |
| 7 | 05/18/2025 | 07:10:35 | -70.06,-111.27 | 129.65 | 05/18/2025 | 07:10:12 | -70.05,-111.29 | 129.66 | 1.27 | 23 |
| 8 | 05/20/2025 | 22:36:51 | 70.15,-162.97 | 49.89 | 05/20/2025 | 22:37:11 | 70.15,-162.90 | 49.89 | 2.67 | 20 |
| 9 | 05/20/2025 | 23:27:32 | -70.01, 4.56 | 130.26 | 05/20/2025 | 23:26:42 | -69.99, 4.51 | 130.28 | 3.17 | 50 |
| 10 | 05/23/2025 | 14:03:02 | -70.18, 145.44 | 130.60 | 05/23/2025 | 14:04:13 | -70.18, 145.38 | 130.61 | 2.29 | 71 |
| 11 | 05/23/2025 | 14:53:46 | 70.05, -47.06 | 49.27 | 05/23/2025 | 14:53:40 | 70.06, -47.13 | 49.28 | 2.99 | 6 |
| 12 | 05/23/2025 | 15:44:25 | -69.81, 120.62 | 130.99 | 05/23/2025 | 15:43:12 | -69.85, 120.20 | 130.94 | 16.82 | 73 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 5/12/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 05/12/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8