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: 11/15/2025
| 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 | 11/18/2025 | 06:20:17 | 71.00, 79.79 | 90.19 | 11/18/2025 | 06:21:23 | 70.92, 82.35 | 90.12 | 93.10 | 66 |
| 2 | 11/18/2025 | 07:10:42 | -70.03,-111.34 | 90.78 | 11/18/2025 | 07:11:07 | -70.05,-111.32 | 90.77 | 1.50 | 25 |
| 3 | 11/18/2025 | 08:01:27 | 69.94, 56.10 | 89.14 | 11/18/2025 | 08:00:34 | 69.94, 56.17 | 89.14 | 2.77 | 53 |
| 4 | 11/20/2025 | 22:37:00 | 70.09,-162.99 | 89.89 | 11/20/2025 | 22:38:04 | 70.12,-162.96 | 89.91 | 3.41 | 64 |
| 5 | 11/20/2025 | 23:27:42 | -70.02, 4.44 | 90.18 | 11/20/2025 | 23:27:34 | -70.01, 4.52 | 90.19 | 3.01 | 8 |
| 6 | 11/21/2025 | 00:18:18 | 69.45, 172.59 | 89.26 | 11/21/2025 | 00:17:08 | 69.51, 171.48 | 89.32 | 43.63 | 70 |
| 7 | 11/23/2025 | 14:53:59 | 70.03, -47.14 | 90.40 | 11/23/2025 | 14:54:31 | 70.03, -47.18 | 90.40 | 1.61 | 32 |
| 8 | 11/23/2025 | 15:44:40 | -69.90, 120.37 | 89.73 | 11/23/2025 | 15:44:01 | -69.92, 120.30 | 89.71 | 3.57 | 39 |
| 9 | 11/26/2025 | 06:20:16 | -70.23, -98.99 | 88.89 | 11/26/2025 | 06:21:28 | -70.18, -98.72 | 88.94 | 11.36 | 72 |
| 10 | 11/26/2025 | 07:10:58 | 69.99, 68.68 | 90.88 | 11/26/2025 | 07:10:56 | 70.01, 68.68 | 90.90 | 1.91 | 2 |
| 11 | 11/26/2025 | 08:01:39 | -69.86,-123.80 | 89.25 | 11/26/2025 | 08:00:27 | -69.85,-123.91 | 89.26 | 4.57 | 72 |
| 12 | 11/28/2025 | 22:37:11 | -70.03, 17.07 | 88.61 | 11/28/2025 | 22:37:53 | -70.05, 17.00 | 88.59 | 3.46 | 42 |
| 13 | 11/28/2025 | 23:27:56 | 69.96,-175.51 | 91.33 | 11/28/2025 | 23:27:20 | 69.93,-175.52 | 91.30 | 2.63 | 36 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/15/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 11/15/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9