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: 11/11/2025
| 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 | 11/12/2025 | 22:36:54 | -70.67, 16.14 | 91.48 | 11/12/2025 | 22:38:03 | -70.60, 17.72 | 91.55 | 58.55 | 69 |
| 2 | 11/12/2025 | 23:27:28 | 70.00,-175.50 | 87.86 | 11/12/2025 | 23:27:39 | 70.00,-175.51 | 87.86 | 0.33 | 11 |
| 3 | 11/13/2025 | 00:18:09 | -69.88, -7.99 | 92.26 | 11/13/2025 | 00:17:09 | -69.89, -8.03 | 92.25 | 1.95 | 60 |
| 4 | 11/15/2025 | 14:53:44 | -70.10, 132.80 | 91.36 | 11/15/2025 | 14:54:41 | -70.09, 132.85 | 91.38 | 2.57 | 57 |
| 5 | 11/15/2025 | 15:44:28 | 69.96, -59.68 | 88.51 | 11/15/2025 | 15:44:08 | 69.98, -59.66 | 88.53 | 2.21 | 20 |
| 6 | 11/15/2025 | 16:34:58 | -69.26, 108.67 | 92.19 | 11/15/2025 | 16:33:49 | -69.27, 107.01 | 92.18 | 65.59 | 69 |
| 7 | 11/18/2025 | 07:10:42 | -70.02,-111.32 | 90.79 | 11/18/2025 | 07:11:09 | -70.03,-111.34 | 90.78 | 1.84 | 27 |
| 8 | 11/18/2025 | 08:01:27 | 69.93, 56.12 | 89.13 | 11/18/2025 | 08:00:36 | 69.92, 56.14 | 89.12 | 1.73 | 51 |
| 9 | 11/20/2025 | 22:37:00 | 70.08,-162.97 | 89.87 | 11/20/2025 | 22:38:07 | 70.10,-163.00 | 89.89 | 2.58 | 67 |
| 10 | 11/20/2025 | 23:27:42 | -70.00, 4.47 | 90.20 | 11/20/2025 | 23:27:37 | -69.99, 4.49 | 90.21 | 0.90 | 5 |
| 11 | 11/21/2025 | 00:18:20 | 69.55, 172.45 | 89.36 | 11/21/2025 | 00:17:09 | 69.60, 171.59 | 89.41 | 33.87 | 71 |
| 12 | 11/23/2025 | 14:54:00 | 70.07, -47.20 | 90.44 | 11/23/2025 | 14:54:34 | 70.07, -47.14 | 90.44 | 2.44 | 34 |
| 13 | 11/23/2025 | 15:44:41 | -69.94, 120.32 | 89.69 | 11/23/2025 | 15:44:05 | -69.92, 120.27 | 89.72 | 2.85 | 36 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/11/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 11/11/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9