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: 10/16/2025
| 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 | 10/17/2025 | 08:00:12 | 69.99, 56.28 | 79.27 | 10/17/2025 | 08:00:36 | 70.01, 56.27 | 79.29 | 2.67 | 24 |
| 2 | 10/17/2025 | 08:50:54 | -69.90,-136.26 | 100.81 | 10/17/2025 | 08:50:06 | -69.90,-136.25 | 100.81 | 0.65 | 48 |
| 3 | 10/19/2025 | 23:26:30 | -70.08, 4.58 | 99.68 | 10/19/2025 | 23:27:38 | -70.10, 4.63 | 99.67 | 2.51 | 68 |
| 4 | 10/20/2025 | 00:17:14 | 69.96, 172.07 | 80.21 | 10/20/2025 | 00:17:06 | 69.94, 172.04 | 80.18 | 3.04 | 8 |
| 5 | 10/20/2025 | 01:07:51 | -69.61, -20.08 | 100.14 | 10/20/2025 | 01:06:39 | -69.66, -20.70 | 100.08 | 24.88 | 72 |
| 6 | 10/22/2025 | 15:43:31 | -70.06, 120.36 | 98.76 | 10/22/2025 | 15:44:06 | -70.04, 120.43 | 98.78 | 3.68 | 35 |
| 7 | 10/22/2025 | 16:34:15 | 69.94, -72.15 | 81.14 | 10/22/2025 | 16:33:33 | 69.93, -72.08 | 81.13 | 2.81 | 42 |
| 8 | 10/25/2025 | 07:09:52 | 70.19, 68.58 | 82.30 | 10/25/2025 | 07:11:03 | 70.17, 68.86 | 82.27 | 11.03 | 71 |
| 9 | 10/25/2025 | 08:00:32 | -70.00,-123.80 | 97.89 | 10/25/2025 | 08:00:34 | -70.01,-123.73 | 97.88 | 2.81 | 2 |
| 10 | 10/25/2025 | 08:51:15 | 69.82, 43.78 | 81.95 | 10/25/2025 | 08:50:02 | 69.84, 43.68 | 81.96 | 4.27 | 73 |
| 11 | 10/27/2025 | 23:26:51 | 70.03,-175.42 | 83.04 | 10/27/2025 | 23:27:32 | 70.04,-175.43 | 83.05 | 0.80 | 41 |
| 12 | 10/28/2025 | 00:17:33 | -69.94, -7.96 | 97.04 | 10/28/2025 | 00:17:02 | -69.94, -7.94 | 97.05 | 0.87 | 31 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/16/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/16/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9