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: 11/21/2025
| 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 | 11/23/2025 | 14:54:00 | 70.06, -47.19 | 90.43 | 11/23/2025 | 14:54:32 | 70.04, -47.18 | 90.41 | 2.61 | 32 |
| 2 | 11/23/2025 | 15:44:41 | -69.94, 120.31 | 89.69 | 11/23/2025 | 15:44:02 | -69.93, 120.30 | 89.70 | 1.43 | 39 |
| 3 | 11/26/2025 | 06:20:18 | -70.30, -99.11 | 88.82 | 11/26/2025 | 06:21:29 | -70.25, -98.64 | 88.87 | 18.76 | 71 |
| 4 | 11/26/2025 | 07:10:59 | 70.01, 68.65 | 90.90 | 11/26/2025 | 07:10:58 | 70.03, 68.70 | 90.92 | 2.85 | 1 |
| 5 | 11/26/2025 | 08:01:40 | -69.88,-123.83 | 89.23 | 11/26/2025 | 08:00:29 | -69.86,-123.90 | 89.25 | 3.16 | 71 |
| 6 | 11/28/2025 | 22:37:13 | -70.09, 16.98 | 88.55 | 11/28/2025 | 22:37:56 | -70.10, 17.05 | 88.54 | 2.94 | 43 |
| 7 | 11/28/2025 | 23:27:57 | 69.95,-175.51 | 91.32 | 11/28/2025 | 23:27:24 | 69.93,-175.54 | 91.30 | 2.71 | 33 |
| 8 | 12/01/2025 | 14:03:37 | 70.49, -35.21 | 92.29 | 12/01/2025 | 14:04:48 | 70.36, -34.30 | 92.15 | 36.48 | 71 |
| 9 | 12/01/2025 | 14:54:12 | -70.04, 132.82 | 88.17 | 12/01/2025 | 14:54:22 | -70.04, 132.86 | 88.18 | 1.58 | 10 |
| 10 | 12/01/2025 | 15:44:56 | 69.91, -59.68 | 91.71 | 12/01/2025 | 15:43:49 | 69.92, -59.66 | 91.72 | 1.79 | 67 |
| 11 | 12/04/2025 | 06:20:29 | 70.08, 81.19 | 92.25 | 12/04/2025 | 06:21:18 | 70.05, 81.15 | 92.22 | 3.34 | 49 |
| 12 | 12/04/2025 | 07:11:11 | -69.99,-111.36 | 87.84 | 12/04/2025 | 07:10:47 | -70.00,-111.29 | 87.83 | 2.87 | 24 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/21/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 11/21/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9