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: 10/31/2025
| 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 | 11/02/2025 | 07:10:08 | -70.05,-111.25 | 95.22 | 11/02/2025 | 07:11:06 | -70.06,-111.29 | 95.20 | 2.13 | 58 |
| 2 | 11/02/2025 | 08:00:53 | 69.96, 56.19 | 84.72 | 11/02/2025 | 08:00:33 | 69.95, 56.20 | 84.71 | 1.00 | 20 |
| 3 | 11/02/2025 | 08:51:22 | -69.20,-135.38 | 96.04 | 11/02/2025 | 08:50:13 | -69.30,-137.06 | 95.95 | 67.02 | 69 |
| 4 | 11/04/2025 | 23:27:09 | -70.02, 4.55 | 94.42 | 11/04/2025 | 23:27:38 | -70.02, 4.52 | 94.41 | 1.05 | 29 |
| 5 | 11/05/2025 | 00:17:54 | 69.93, 171.98 | 85.51 | 11/05/2025 | 00:17:05 | 69.91, 172.02 | 85.49 | 2.51 | 49 |
| 6 | 11/07/2025 | 14:53:28 | 70.12, -47.19 | 86.48 | 11/07/2025 | 14:54:38 | 70.11, -47.11 | 86.47 | 3.38 | 70 |
| 7 | 11/07/2025 | 15:44:09 | -69.99, 120.33 | 93.64 | 11/07/2025 | 15:44:08 | -70.01, 120.38 | 93.63 | 2.33 | 1 |
| 8 | 11/07/2025 | 16:34:50 | 69.70, -71.92 | 86.08 | 11/07/2025 | 16:33:37 | 69.78, -72.29 | 86.16 | 17.14 | 73 |
| 9 | 11/10/2025 | 07:10:28 | 70.06, 68.67 | 87.19 | 11/10/2025 | 07:11:09 | 70.06, 68.70 | 87.19 | 1.46 | 41 |
| 10 | 11/10/2025 | 08:01:09 | -69.93,-123.81 | 92.94 | 11/10/2025 | 08:00:40 | -69.91,-123.88 | 92.96 | 3.21 | 29 |
| 11 | 11/12/2025 | 22:36:55 | -70.71, 16.08 | 91.44 | 11/12/2025 | 22:38:04 | -70.60, 17.72 | 91.56 | 61.58 | 69 |
| 12 | 11/12/2025 | 23:27:28 | 70.00,-175.49 | 87.86 | 11/12/2025 | 23:27:40 | 69.99,-175.52 | 87.84 | 1.88 | 12 |
| 13 | 11/13/2025 | 00:18:09 | -69.87, -7.97 | 92.27 | 11/13/2025 | 00:17:10 | -69.89, -8.03 | 92.25 | 3.32 | 59 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/31/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/31/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9