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: 4/10/2025
| 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 | 04/11/2025 | 14:16:15 | -70.19, 142.24 | 118.41 | 04/11/2025 | 14:17:04 | -70.21, 142.22 | 118.40 | 2.00 | 49 |
| 2 | 04/11/2025 | 15:07:00 | 70.10, -50.31 | 61.48 | 04/11/2025 | 15:06:31 | 70.11, -50.28 | 61.49 | 1.03 | 29 |
| 3 | 04/14/2025 | 05:42:45 | 70.93, 89.49 | 61.40 | 04/14/2025 | 05:43:53 | 70.80, 91.33 | 61.21 | 68.97 | 68 |
| 4 | 04/14/2025 | 06:33:14 | -70.18,-101.97 | 119.41 | 04/14/2025 | 06:33:32 | -70.20,-101.93 | 119.39 | 2.69 | 18 |
| 5 | 04/14/2025 | 07:23:58 | 70.04, 65.55 | 60.44 | 04/14/2025 | 07:23:00 | 70.03, 65.49 | 60.44 | 2.36 | 58 |
| 6 | 04/16/2025 | 21:59:32 | 70.25,-153.65 | 59.73 | 04/16/2025 | 22:00:31 | 70.24,-153.62 | 59.71 | 2.14 | 59 |
| 7 | 04/16/2025 | 22:50:13 | -70.12, 13.87 | 120.42 | 04/16/2025 | 22:50:01 | -70.13, 13.86 | 120.41 | 1.25 | 12 |
| 8 | 04/16/2025 | 23:40:47 | 69.46,-177.83 | 58.88 | 04/16/2025 | 23:39:38 | 69.47,-179.41 | 58.94 | 61.56 | 69 |
| 9 | 04/19/2025 | 14:16:30 | 70.16, -37.75 | 58.70 | 04/19/2025 | 14:16:59 | 70.17, -37.83 | 58.71 | 3.28 | 29 |
| 10 | 04/19/2025 | 15:07:12 | -70.07, 129.70 | 121.41 | 04/19/2025 | 15:06:29 | -70.07, 129.66 | 121.41 | 1.71 | 43 |
| 11 | 04/22/2025 | 05:42:46 | -70.31, -89.52 | 122.06 | 04/22/2025 | 05:43:58 | -70.29, -89.42 | 122.08 | 4.21 | 72 |
| 12 | 04/22/2025 | 06:33:29 | 70.13, 78.05 | 57.76 | 04/22/2025 | 06:33:26 | 70.12, 77.98 | 57.74 | 3.32 | 3 |
| 13 | 04/22/2025 | 07:24:09 | -69.94,-114.33 | 122.46 | 04/22/2025 | 07:22:57 | -69.96,-114.61 | 122.43 | 11.06 | 72 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/10/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/10/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9