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: 10/2/2025
| 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 | 10/03/2025 | 22:37:00 | -70.11, 17.03 | 105.65 | 10/03/2025 | 22:38:02 | -70.10, 16.99 | 105.67 | 2.26 | 62 |
| 2 | 10/03/2025 | 23:27:45 | 70.03,-175.52 | 74.27 | 10/03/2025 | 23:27:29 | 70.00,-175.50 | 74.25 | 3.12 | 16 |
| 3 | 10/04/2025 | 00:18:17 | -69.44, -7.34 | 106.31 | 10/04/2025 | 00:17:06 | -69.50, -8.55 | 106.24 | 48.03 | 71 |
| 4 | 10/06/2025 | 14:53:51 | -70.06, 132.90 | 104.68 | 10/06/2025 | 14:54:33 | -70.08, 132.84 | 104.66 | 3.04 | 42 |
| 5 | 10/06/2025 | 15:44:36 | 69.97, -59.66 | 75.25 | 10/06/2025 | 15:44:00 | 69.97, -59.66 | 75.25 | 0.29 | 36 |
| 6 | 10/09/2025 | 06:20:15 | 70.87, 80.08 | 77.15 | 10/09/2025 | 06:21:22 | 70.77, 82.10 | 77.04 | 74.88 | 67 |
| 7 | 10/09/2025 | 07:10:43 | -70.07,-111.33 | 103.65 | 10/09/2025 | 07:11:03 | -70.06,-111.31 | 103.66 | 1.77 | 20 |
| 8 | 10/09/2025 | 08:01:27 | 69.93, 56.19 | 76.23 | 10/09/2025 | 08:00:30 | 69.95, 56.18 | 76.25 | 1.92 | 57 |
| 9 | 10/11/2025 | 22:36:52 | 70.16,-163.00 | 77.45 | 10/11/2025 | 22:38:01 | 70.15,-162.93 | 77.43 | 3.09 | 69 |
| 10 | 10/11/2025 | 23:27:33 | -70.05, 4.50 | 102.66 | 10/11/2025 | 23:27:31 | -70.05, 4.56 | 102.67 | 2.31 | 2 |
| 11 | 10/12/2025 | 00:18:13 | 69.70, 172.33 | 77.00 | 10/12/2025 | 00:17:01 | 69.77, 171.81 | 77.07 | 21.32 | 72 |
| 12 | 10/14/2025 | 14:53:42 | 70.10, -47.12 | 78.38 | 10/14/2025 | 14:54:30 | 70.08, -47.14 | 78.36 | 2.45 | 48 |
| 13 | 10/14/2025 | 15:44:23 | -69.98, 120.38 | 101.73 | 10/14/2025 | 15:44:00 | -69.98, 120.35 | 101.73 | 1.35 | 23 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/2/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/02/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8