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: 5/31/2025
| 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 | 05/31/2025 | 14:03:11 | 70.20, -34.62 | 48.13 | 05/31/2025 | 14:04:16 | 70.18, -34.60 | 48.10 | 1.64 | 65 |
| 2 | 05/31/2025 | 14:53:52 | -70.08, 132.87 | 132.00 | 05/31/2025 | 14:53:46 | -70.07, 132.86 | 132.02 | 1.69 | 6 |
| 3 | 05/31/2025 | 15:44:30 | 69.62, -59.13 | 47.52 | 05/31/2025 | 15:43:19 | 69.64, -60.09 | 47.57 | 37.33 | 71 |
| 4 | 06/03/2025 | 06:20:07 | 70.12, 81.25 | 47.70 | 06/03/2025 | 06:20:46 | 70.11, 81.17 | 47.69 | 3.34 | 39 |
| 5 | 06/03/2025 | 07:10:49 | -70.06,-111.33 | 132.37 | 06/03/2025 | 07:10:15 | -70.05,-111.27 | 132.38 | 2.57 | 34 |
| 6 | 06/05/2025 | 21:46:30 | -70.78, 28.67 | 131.91 | 06/05/2025 | 21:47:39 | -70.66, 30.23 | 132.07 | 58.90 | 69 |
| 7 | 06/05/2025 | 22:37:04 | 70.11,-162.97 | 47.39 | 06/05/2025 | 22:37:14 | 70.12,-162.92 | 47.40 | 2.27 | 10 |
| 8 | 06/05/2025 | 23:27:45 | -69.99, 4.53 | 132.74 | 06/05/2025 | 23:26:44 | -70.01, 4.56 | 132.71 | 2.39 | 61 |
| 9 | 06/08/2025 | 14:03:16 | -70.19, 145.36 | 132.77 | 06/08/2025 | 14:04:16 | -70.17, 145.40 | 132.80 | 2.58 | 60 |
| 10 | 06/08/2025 | 14:54:00 | 70.05, -47.11 | 47.08 | 06/08/2025 | 14:53:43 | 70.06, -47.12 | 47.09 | 1.34 | 17 |
| 11 | 06/08/2025 | 15:44:31 | -69.40, 121.16 | 133.60 | 06/08/2025 | 15:43:22 | -69.46, 119.69 | 133.49 | 58.05 | 69 |
| 12 | 06/11/2025 | 06:20:11 | -70.13, -98.79 | 133.03 | 06/11/2025 | 06:20:43 | -70.15, -98.75 | 133.03 | 1.99 | 32 |
| 13 | 06/11/2025 | 07:10:55 | 69.99, 68.74 | 46.82 | 06/11/2025 | 07:10:11 | 69.98, 68.66 | 46.81 | 3.40 | 44 |
| 14 | 06/13/2025 | 21:46:28 | 70.31,-150.62 | 47.01 | 06/13/2025 | 21:47:40 | 70.26,-150.33 | 46.93 | 12.45 | 72 |
| 15 | 06/13/2025 | 22:37:07 | -70.08, 17.05 | 133.24 | 06/13/2025 | 22:37:11 | -70.10, 17.08 | 133.22 | 2.37 | 4 |
| 16 | 06/13/2025 | 23:27:51 | 69.94,-175.43 | 46.62 | 06/13/2025 | 23:26:39 | 69.93,-175.52 | 46.61 | 3.66 | 72 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 5/31/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 05/31/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8