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: 7/24/2025
| 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 | 07/26/2025 | 14:03:36 | -70.15, 145.33 | 129.14 | 07/26/2025 | 14:04:43 | -70.16, 145.35 | 129.15 | 0.96 | 67 |
| 2 | 07/26/2025 | 14:54:20 | 70.05, -47.21 | 50.76 | 07/26/2025 | 14:54:10 | 70.05, -47.15 | 50.76 | 2.04 | 10 |
| 3 | 07/26/2025 | 15:44:56 | -69.63, 120.74 | 129.68 | 07/26/2025 | 15:43:44 | -69.72, 120.02 | 129.55 | 29.76 | 72 |
| 4 | 07/29/2025 | 06:20:31 | -70.11, -98.84 | 128.57 | 07/29/2025 | 06:21:13 | -70.11, -98.83 | 128.58 | 0.46 | 42 |
| 5 | 07/29/2025 | 07:11:15 | 70.02, 68.61 | 51.35 | 07/29/2025 | 07:10:40 | 70.00, 68.66 | 51.33 | 2.73 | 35 |
| 6 | 07/31/2025 | 21:46:54 | 70.78,-151.44 | 52.79 | 07/31/2025 | 21:48:02 | 70.70,-149.71 | 52.63 | 64.13 | 68 |
| 7 | 07/31/2025 | 22:37:25 | -70.08, 16.98 | 127.95 | 07/31/2025 | 22:37:41 | -70.10, 17.04 | 127.93 | 3.38 | 16 |
| 8 | 07/31/2025 | 23:28:08 | 69.94,-175.50 | 51.92 | 07/31/2025 | 23:27:09 | 69.94,-175.55 | 51.92 | 2.04 | 59 |
| 9 | 08/03/2025 | 14:03:37 | 70.12, -34.63 | 52.78 | 08/03/2025 | 14:04:41 | 70.12, -34.68 | 52.77 | 1.79 | 64 |
| 10 | 08/03/2025 | 14:54:19 | -70.00, 132.87 | 127.34 | 08/03/2025 | 14:54:11 | -70.02, 132.81 | 127.32 | 3.28 | 8 |
| 11 | 08/03/2025 | 15:44:55 | 69.49, -59.07 | 52.14 | 08/03/2025 | 15:43:44 | 69.57, -60.16 | 52.27 | 43.48 | 71 |
| 12 | 08/06/2025 | 06:20:32 | 70.11, 81.16 | 53.48 | 08/06/2025 | 06:21:09 | 70.13, 81.22 | 53.50 | 2.96 | 37 |
| 13 | 08/06/2025 | 07:11:14 | -69.97,-111.32 | 126.65 | 08/06/2025 | 07:10:40 | -69.97,-111.37 | 126.65 | 1.92 | 34 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/24/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/24/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8