Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 1/16/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 01/16/2025 | 22:12:01 | -70.40, 23.02 | 88.84 | 01/16/2025 | 22:13:13 | -70.34, 23.49 | 88.93 | 18.98 | 72 |
| 2 | 01/16/2025 | 23:02:42 | 70.13,-169.24 | 90.87 | 01/16/2025 | 23:02:42 | 70.13,-169.17 | 90.86 | 2.75 | 0 |
| 3 | 01/16/2025 | 23:53:23 | -70.00, -1.72 | 89.28 | 01/16/2025 | 23:52:12 | -70.02, -1.69 | 89.26 | 2.47 | 71 |
| 4 | 01/19/2025 | 14:28:45 | -70.18, 139.16 | 89.62 | 01/19/2025 | 14:29:46 | -70.17, 139.13 | 89.64 | 1.98 | 61 |
| 5 | 01/19/2025 | 15:19:29 | 70.06, -53.35 | 90.26 | 01/19/2025 | 15:19:13 | 70.07, -53.38 | 90.26 | 1.28 | 16 |
| 6 | 01/19/2025 | 16:10:01 | -69.46, 114.87 | 90.39 | 01/19/2025 | 16:08:51 | -69.52, 113.50 | 90.27 | 53.78 | 70 |
| 7 | 01/22/2025 | 06:45:33 | -70.18,-105.04 | 90.21 | 01/22/2025 | 06:46:15 | -70.19,-104.97 | 90.21 | 2.46 | 42 |
| 8 | 01/22/2025 | 07:36:17 | 70.06, 62.45 | 89.67 | 01/22/2025 | 07:35:42 | 70.08, 62.51 | 89.68 | 2.77 | 35 |
| 9 | 01/24/2025 | 22:11:54 | 71.11,-158.06 | 90.15 | 01/24/2025 | 22:13:00 | 70.98,-155.54 | 89.92 | 92.20 | 66 |
| 10 | 01/24/2025 | 23:02:19 | -70.14, 10.83 | 90.88 | 01/24/2025 | 23:02:44 | -70.11, 10.80 | 90.92 | 3.40 | 25 |
| 11 | 01/24/2025 | 23:53:03 | 70.02, 178.32 | 88.99 | 01/24/2025 | 23:52:11 | 70.00, 178.28 | 88.97 | 2.79 | 52 |
| 12 | 01/27/2025 | 14:28:29 | 70.44, -41.17 | 88.78 | 01/27/2025 | 14:29:39 | 70.37, -40.57 | 88.67 | 23.72 | 70 |
| 13 | 01/27/2025 | 15:19:06 | -70.10, 126.68 | 91.60 | 01/27/2025 | 15:19:12 | -70.11, 126.68 | 91.60 | 0.41 | 6 |
| 14 | 01/27/2025 | 16:09:50 | 69.98, -65.83 | 88.27 | 01/27/2025 | 16:08:39 | 69.99, -65.84 | 88.29 | 0.85 | 71 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/16/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/16/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9