Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/18/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 10/21/2025 | 07:35:00 | -70.03,-117.47 | 99.26 | 10/21/2025 | 07:35:45 | -70.02,-117.54 | 99.28 | 3.18 | 45 |
| 2 | 10/21/2025 | 08:25:44 | 69.91, 50.03 | 80.63 | 10/21/2025 | 08:25:12 | 69.91, 49.95 | 80.63 | 2.91 | 32 |
| 3 | 10/23/2025 | 23:01:27 | 70.47,-169.73 | 82.12 | 10/23/2025 | 23:02:38 | 70.34,-168.82 | 81.98 | 36.99 | 71 |
| 4 | 10/23/2025 | 23:52:02 | -70.02, -1.70 | 98.34 | 10/23/2025 | 23:52:12 | -70.01, -1.66 | 98.34 | 1.47 | 10 |
| 5 | 10/24/2025 | 00:42:46 | 69.89, 165.80 | 81.56 | 10/24/2025 | 00:41:39 | 69.90, 165.83 | 81.56 | 1.71 | 67 |
| 6 | 10/26/2025 | 15:18:20 | 70.04, -53.31 | 82.61 | 10/26/2025 | 15:19:08 | 70.07, -53.31 | 82.63 | 3.21 | 48 |
| 7 | 10/26/2025 | 16:09:02 | -69.95, 114.14 | 97.48 | 10/26/2025 | 16:08:38 | -69.97, 114.17 | 97.47 | 1.54 | 24 |
| 8 | 10/29/2025 | 06:44:49 | -70.75,-105.99 | 95.81 | 10/29/2025 | 06:45:58 | -70.65,-104.22 | 95.90 | 65.85 | 69 |
| 9 | 10/29/2025 | 07:35:21 | 69.99, 62.51 | 83.45 | 10/29/2025 | 07:35:35 | 69.99, 62.46 | 83.45 | 1.97 | 14 |
| 10 | 10/29/2025 | 08:26:03 | -69.90,-130.03 | 96.63 | 10/29/2025 | 08:25:05 | -69.88,-130.05 | 96.65 | 2.27 | 58 |
| 11 | 10/31/2025 | 23:01:38 | -70.08, 10.83 | 95.61 | 10/31/2025 | 23:02:33 | -70.10, 10.87 | 95.59 | 2.78 | 55 |
| 12 | 10/31/2025 | 23:52:22 | 69.95, 178.33 | 84.28 | 10/31/2025 | 23:52:00 | 69.98, 178.35 | 84.31 | 3.21 | 22 |
Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/18/2025
Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 10/18/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-8