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: 10/9/2025
| 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 | 10/09/2025 | 07:09:47 | 70.82, 67.62 | 77.11 | 10/09/2025 | 07:10:54 | 70.72, 69.68 | 77.01 | 75.85 | 67 |
| 2 | 10/09/2025 | 08:00:15 | -69.98,-123.74 | 103.72 | 10/09/2025 | 08:00:35 | -70.01,-123.74 | 103.70 | 2.80 | 20 |
| 3 | 10/09/2025 | 08:50:59 | 69.88, 43.73 | 76.19 | 10/09/2025 | 08:50:03 | 69.85, 43.69 | 76.16 | 3.39 | 56 |
| 4 | 10/11/2025 | 23:26:25 | 70.10,-175.44 | 77.40 | 10/11/2025 | 23:27:36 | 70.09,-175.38 | 77.39 | 2.69 | 71 |
| 5 | 10/12/2025 | 00:17:06 | -69.95, -7.90 | 102.75 | 10/12/2025 | 00:17:06 | -69.98, -7.90 | 102.71 | 3.70 | 0 |
| 6 | 10/12/2025 | 01:07:48 | 69.74, 159.73 | 77.06 | 10/12/2025 | 01:06:35 | 69.77, 159.45 | 77.09 | 11.15 | 73 |
| 7 | 10/14/2025 | 15:43:15 | 70.03, -59.53 | 78.32 | 10/14/2025 | 15:44:07 | 70.04, -59.58 | 78.33 | 2.11 | 52 |
| 8 | 10/14/2025 | 16:33:57 | -69.93, 107.93 | 101.77 | 10/14/2025 | 16:33:37 | -69.93, 107.91 | 101.77 | 1.01 | 20 |
| 9 | 10/14/2025 | 17:24:25 | 68.97, -83.38 | 77.29 | 10/14/2025 | 17:23:18 | 69.05, -85.64 | 77.37 | 90.04 | 67 |
| 10 | 10/17/2025 | 08:00:05 | 70.01, 56.28 | 79.29 | 10/17/2025 | 08:00:36 | 70.01, 56.26 | 79.28 | 0.84 | 31 |
| 11 | 10/17/2025 | 08:50:47 | -69.91,-136.25 | 100.80 | 10/17/2025 | 08:50:06 | -69.91,-136.25 | 100.81 | 0.69 | 41 |
| 12 | 10/19/2025 | 23:26:22 | -70.63, 3.79 | 99.14 | 10/19/2025 | 23:27:31 | -70.50, 5.22 | 99.26 | 54.46 | 69 |
| 13 | 10/20/2025 | 00:16:56 | 70.00, 172.09 | 80.25 | 10/20/2025 | 00:17:05 | 70.01, 172.14 | 80.25 | 2.06 | 9 |
| 14 | 10/20/2025 | 01:07:37 | -69.85, -20.37 | 99.89 | 10/20/2025 | 01:06:36 | -69.85, -20.44 | 99.90 | 2.85 | 61 |
| 15 | 10/22/2025 | 15:43:02 | -70.05, 120.50 | 98.77 | 10/22/2025 | 15:44:08 | -70.04, 120.43 | 98.78 | 3.08 | 66 |
| 16 | 10/22/2025 | 16:33:46 | 69.95, -72.04 | 81.15 | 10/22/2025 | 16:33:34 | 69.97, -72.02 | 81.17 | 2.70 | 12 |
| 17 | 10/22/2025 | 17:24:21 | -69.48, 95.97 | 99.31 | 10/22/2025 | 17:23:10 | -69.55, 95.03 | 99.25 | 37.41 | 71 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/9/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/09/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9