Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/6/2025
| Index | Date (NPP) | Time (NPP) | Lat,Lon (NPP) | SZA (NPP ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 04/06/2025 | 06:33:00 | 70.18, 78.06 | 63.56 | 04/06/2025 | 06:33:29 | 70.20, 78.10 | 63.57 | 2.30 | 29 |
| 2 | 04/06/2025 | 07:23:41 | -70.06,-114.44 | 116.57 | 04/06/2025 | 07:22:59 | -70.09,-114.42 | 116.55 | 2.60 | 42 |
| 3 | 04/08/2025 | 21:59:20 | -70.50, 26.01 | 117.10 | 04/08/2025 | 22:00:31 | -70.39, 26.61 | 117.24 | 25.23 | 71 |
| 4 | 04/08/2025 | 22:50:00 | 70.14,-166.13 | 62.52 | 04/08/2025 | 22:50:01 | 70.12,-166.14 | 62.49 | 2.66 | 1 |
| 5 | 04/08/2025 | 23:40:41 | -70.02, 1.38 | 117.62 | 04/08/2025 | 23:39:31 | -70.02, 1.35 | 117.63 | 1.51 | 70 |
| 6 | 04/11/2025 | 14:16:15 | -70.21, 142.22 | 118.40 | 04/11/2025 | 14:17:05 | -70.21, 142.21 | 118.41 | 0.64 | 50 |
| 7 | 04/11/2025 | 15:07:00 | 70.12, -50.34 | 61.50 | 04/11/2025 | 15:06:32 | 70.10, -50.30 | 61.48 | 3.26 | 28 |
| 8 | 04/11/2025 | 15:57:24 | -69.10, 118.48 | 119.57 | 04/11/2025 | 15:56:18 | -69.11, 116.00 | 119.49 | 98.61 | 66 |
| 9 | 04/14/2025 | 05:42:47 | 71.01, 89.36 | 61.48 | 04/14/2025 | 05:43:54 | 70.94, 91.53 | 61.34 | 79.10 | 67 |
| 10 | 04/14/2025 | 06:33:15 | -70.20,-102.00 | 119.39 | 04/14/2025 | 06:33:36 | -70.18,-101.96 | 119.41 | 2.33 | 21 |
| 11 | 04/14/2025 | 07:23:59 | 70.06, 65.51 | 60.46 | 04/14/2025 | 07:23:03 | 70.06, 65.52 | 60.47 | 0.45 | 56 |
| 12 | 04/16/2025 | 21:59:31 | 70.23,-153.61 | 59.71 | 04/16/2025 | 22:00:36 | 70.24,-153.63 | 59.71 | 1.93 | 65 |
| 13 | 04/16/2025 | 22:50:13 | -70.14, 13.84 | 120.40 | 04/16/2025 | 22:50:06 | -70.15, 13.86 | 120.40 | 0.94 | 7 |
| 14 | 04/16/2025 | 23:40:50 | 69.65,-178.10 | 59.08 | 04/16/2025 | 23:39:39 | 69.70,-179.12 | 59.16 | 39.67 | 71 |
| 15 | 04/19/2025 | 14:16:30 | 70.20, -37.80 | 58.74 | 04/19/2025 | 14:17:07 | 70.20, -37.82 | 58.74 | 1.16 | 37 |
| 16 | 04/19/2025 | 15:07:12 | -70.11, 129.66 | 121.37 | 04/19/2025 | 15:06:37 | -70.11, 129.68 | 121.37 | 0.93 | 35 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/6/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/06/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9