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: 4/14/2025
| 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 | 04/14/2025 | 05:42:45 | 70.92, 89.50 | 61.39 | 04/14/2025 | 05:43:53 | 70.81, 91.35 | 61.22 | 68.42 | 68 |
| 2 | 04/14/2025 | 06:33:14 | -70.17,-101.96 | 119.41 | 04/14/2025 | 06:33:33 | -70.15,-101.99 | 119.44 | 2.74 | 19 |
| 3 | 04/14/2025 | 07:23:58 | 70.03, 65.56 | 60.43 | 04/14/2025 | 07:23:00 | 70.05, 65.50 | 60.45 | 2.95 | 58 |
| 4 | 04/16/2025 | 21:59:32 | 70.24,-153.64 | 59.72 | 04/16/2025 | 22:00:31 | 70.26,-153.59 | 59.72 | 2.13 | 59 |
| 5 | 04/16/2025 | 22:50:13 | -70.11, 13.88 | 120.43 | 04/16/2025 | 22:50:01 | -70.14, 13.88 | 120.40 | 3.40 | 12 |
| 6 | 04/16/2025 | 23:40:47 | 69.45,-177.82 | 58.87 | 04/16/2025 | 23:39:38 | 69.49,-179.39 | 58.96 | 61.33 | 69 |
| 7 | 04/19/2025 | 14:16:31 | 70.20, -37.82 | 58.75 | 04/19/2025 | 14:16:59 | 70.20, -37.79 | 58.74 | 1.14 | 28 |
| 8 | 04/19/2025 | 15:07:12 | -70.07, 129.71 | 121.41 | 04/19/2025 | 15:06:29 | -70.10, 129.69 | 121.38 | 2.88 | 43 |
| 9 | 04/22/2025 | 05:42:46 | -70.35, -89.60 | 122.00 | 04/22/2025 | 05:43:57 | -70.33, -89.37 | 122.04 | 9.20 | 71 |
| 10 | 04/22/2025 | 06:33:29 | 70.18, 77.98 | 57.81 | 04/22/2025 | 06:33:25 | 70.16, 78.04 | 57.79 | 2.91 | 4 |
| 11 | 04/22/2025 | 07:24:09 | -69.99,-114.40 | 122.41 | 04/22/2025 | 07:22:56 | -70.00,-114.56 | 122.39 | 6.04 | 73 |
| 12 | 04/24/2025 | 21:59:43 | -70.23, 26.36 | 123.02 | 04/24/2025 | 22:00:24 | -70.24, 26.40 | 123.01 | 2.33 | 41 |
| 13 | 04/24/2025 | 22:50:27 | 70.11,-166.16 | 56.85 | 04/24/2025 | 22:49:51 | 70.13,-166.12 | 56.87 | 2.14 | 36 |
| 14 | 04/27/2025 | 13:26:05 | 70.59, -25.77 | 56.50 | 04/27/2025 | 13:27:16 | 70.49, -24.98 | 56.38 | 31.20 | 71 |
| 15 | 04/27/2025 | 14:16:41 | -70.17, 142.21 | 123.94 | 04/27/2025 | 14:16:50 | -70.17, 142.19 | 123.95 | 0.93 | 9 |
| 16 | 04/27/2025 | 15:07:25 | 70.06, -50.31 | 55.93 | 04/27/2025 | 15:06:17 | 70.05, -50.34 | 55.93 | 1.57 | 68 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/14/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/14/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9