Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/13/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 11/15/2025 | 14:53:44 | -70.11, 132.79 | 91.36 | 11/15/2025 | 14:54:40 | -70.10, 132.87 | 91.37 | 3.07 | 56 |
| 2 | 11/15/2025 | 15:44:28 | 69.96, -59.68 | 88.51 | 11/15/2025 | 15:44:08 | 69.94, -59.71 | 88.48 | 3.02 | 20 |
| 3 | 11/15/2025 | 16:34:57 | -69.21, 108.74 | 92.24 | 11/15/2025 | 16:33:48 | -69.28, 107.02 | 92.17 | 68.20 | 69 |
| 4 | 11/18/2025 | 06:20:17 | 71.00, 79.79 | 90.19 | 11/18/2025 | 06:21:23 | 70.92, 82.35 | 90.11 | 93.03 | 66 |
| 5 | 11/18/2025 | 07:10:42 | -70.03,-111.34 | 90.78 | 11/18/2025 | 07:11:07 | -70.05,-111.32 | 90.77 | 1.73 | 25 |
| 6 | 11/18/2025 | 08:01:27 | 69.94, 56.10 | 89.15 | 11/18/2025 | 08:00:34 | 69.94, 56.17 | 89.13 | 2.78 | 53 |
| 7 | 11/20/2025 | 22:37:00 | 70.10,-163.00 | 89.90 | 11/20/2025 | 22:38:04 | 70.10,-162.98 | 89.89 | 0.72 | 64 |
| 8 | 11/20/2025 | 23:27:41 | -69.97, 4.51 | 90.23 | 11/20/2025 | 23:27:34 | -69.99, 4.50 | 90.21 | 2.21 | 7 |
| 9 | 11/21/2025 | 00:18:18 | 69.46, 172.57 | 89.28 | 11/21/2025 | 00:17:07 | 69.55, 171.53 | 89.36 | 41.63 | 71 |
| 10 | 11/23/2025 | 14:53:59 | 70.06, -47.18 | 90.43 | 11/23/2025 | 14:54:30 | 70.04, -47.17 | 90.41 | 1.95 | 31 |
| 11 | 11/23/2025 | 15:44:40 | -69.93, 120.34 | 89.70 | 11/23/2025 | 15:44:00 | -69.94, 120.32 | 89.70 | 1.25 | 40 |
| 12 | 11/26/2025 | 06:20:15 | -70.21, -98.97 | 88.90 | 11/26/2025 | 06:21:27 | -70.16, -98.74 | 88.96 | 10.44 | 72 |
| 13 | 11/26/2025 | 07:10:57 | 69.98, 68.70 | 90.87 | 11/26/2025 | 07:10:55 | 69.99, 68.66 | 90.88 | 1.82 | 2 |
| 14 | 11/26/2025 | 08:01:38 | -69.85,-123.78 | 89.26 | 11/26/2025 | 08:00:25 | -69.88,-123.86 | 89.23 | 4.98 | 73 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/13/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 11/13/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9