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: 10/11/2025
| 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 | 10/11/2025 | 23:26:25 | 70.09,-175.42 | 77.38 | 10/11/2025 | 23:27:36 | 70.11,-175.36 | 77.40 | 3.32 | 71 |
| 2 | 10/12/2025 | 00:17:07 | -69.99, -7.96 | 102.70 | 10/12/2025 | 00:17:06 | -69.99, -7.88 | 102.70 | 2.96 | 1 |
| 3 | 10/12/2025 | 01:07:48 | 69.73, 159.75 | 77.05 | 10/12/2025 | 01:06:35 | 69.78, 159.47 | 77.10 | 12.56 | 73 |
| 4 | 10/14/2025 | 15:43:15 | 70.06, -59.59 | 78.36 | 10/14/2025 | 15:44:06 | 70.05, -59.56 | 78.34 | 1.84 | 51 |
| 5 | 10/14/2025 | 16:33:56 | -69.92, 107.95 | 101.78 | 10/14/2025 | 16:33:36 | -69.94, 107.92 | 101.76 | 3.10 | 20 |
| 6 | 10/14/2025 | 17:24:24 | 68.96, -83.36 | 77.28 | 10/14/2025 | 17:23:18 | 69.00, -85.69 | 77.32 | 93.03 | 66 |
| 7 | 10/17/2025 | 08:00:05 | 69.99, 56.31 | 79.27 | 10/17/2025 | 08:00:36 | 70.02, 56.27 | 79.30 | 3.05 | 31 |
| 8 | 10/17/2025 | 08:50:47 | -69.90,-136.23 | 100.82 | 10/17/2025 | 08:50:06 | -69.91,-136.24 | 100.80 | 1.68 | 41 |
| 9 | 10/19/2025 | 23:26:22 | -70.61, 3.82 | 99.15 | 10/19/2025 | 23:27:31 | -70.51, 5.22 | 99.26 | 53.40 | 69 |
| 10 | 10/20/2025 | 00:16:56 | 69.99, 172.11 | 80.23 | 10/20/2025 | 00:17:06 | 69.96, 172.07 | 80.21 | 3.15 | 10 |
| 11 | 10/20/2025 | 01:07:38 | -69.89, -20.43 | 99.86 | 10/20/2025 | 01:06:36 | -69.86, -20.44 | 99.89 | 3.58 | 62 |
| 12 | 10/22/2025 | 15:43:03 | -70.09, 120.44 | 98.73 | 10/22/2025 | 15:44:07 | -70.10, 120.51 | 98.72 | 2.96 | 64 |
| 13 | 10/22/2025 | 16:33:46 | 69.93, -72.01 | 81.13 | 10/22/2025 | 16:33:35 | 69.93, -72.09 | 81.12 | 2.84 | 11 |
| 14 | 10/22/2025 | 17:24:21 | -69.47, 95.99 | 99.33 | 10/22/2025 | 17:23:10 | -69.55, 95.03 | 99.24 | 38.62 | 71 |
| 15 | 10/25/2025 | 07:59:52 | -70.04,-123.69 | 97.85 | 10/25/2025 | 08:00:35 | -70.04,-123.68 | 97.85 | 0.42 | 43 |
| 16 | 10/25/2025 | 08:50:36 | 69.94, 43.77 | 82.07 | 10/25/2025 | 08:50:02 | 69.92, 43.79 | 82.05 | 1.87 | 34 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/11/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/11/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9