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: 7/14/2025
| 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 | 07/16/2025 | 13:26:54 | 70.25, -25.22 | 48.98 | 07/16/2025 | 13:27:30 | 70.23, -25.25 | 48.95 | 2.88 | 36 |
| 2 | 07/16/2025 | 14:17:35 | -70.13, 142.29 | 131.14 | 07/16/2025 | 14:17:00 | -70.13, 142.23 | 131.15 | 2.61 | 35 |
| 3 | 07/19/2025 | 04:53:16 | -70.93, -77.85 | 129.84 | 07/19/2025 | 04:54:25 | -70.82, -76.15 | 130.03 | 63.37 | 69 |
| 4 | 07/19/2025 | 05:43:49 | 70.22, 90.61 | 49.42 | 07/19/2025 | 05:44:01 | 70.22, 90.61 | 49.41 | 0.44 | 12 |
| 5 | 07/19/2025 | 06:34:30 | -70.10,-101.88 | 130.71 | 07/19/2025 | 06:33:31 | -70.12,-101.91 | 130.68 | 1.91 | 59 |
| 6 | 07/21/2025 | 21:09:58 | -70.28, 38.99 | 130.02 | 07/21/2025 | 21:11:04 | -70.31, 38.97 | 130.00 | 3.03 | 66 |
| 7 | 07/21/2025 | 22:00:43 | 70.20,-153.57 | 49.90 | 07/21/2025 | 22:00:31 | 70.19,-153.55 | 49.90 | 0.96 | 12 |
| 8 | 07/21/2025 | 22:51:18 | -69.76, 14.41 | 130.55 | 07/21/2025 | 22:50:06 | -69.82, 13.55 | 130.45 | 33.77 | 72 |
| 9 | 07/24/2025 | 13:26:53 | -70.26, 154.80 | 129.49 | 07/24/2025 | 13:27:35 | -70.27, 154.79 | 129.49 | 1.26 | 42 |
| 10 | 07/24/2025 | 14:17:38 | 70.18, -37.76 | 50.43 | 07/24/2025 | 14:17:02 | 70.15, -37.73 | 50.41 | 3.03 | 36 |
| 11 | 07/27/2025 | 04:53:18 | 70.94, 102.15 | 51.82 | 07/27/2025 | 04:54:26 | 70.86, 103.92 | 51.66 | 65.06 | 68 |
| 12 | 07/27/2025 | 05:43:48 | -70.24, -89.39 | 128.92 | 07/27/2025 | 05:44:06 | -70.22, -89.41 | 128.95 | 2.83 | 18 |
| 13 | 07/27/2025 | 06:34:32 | 70.11, 78.12 | 50.95 | 07/27/2025 | 06:33:33 | 70.10, 78.07 | 50.95 | 2.45 | 59 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/14/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/14/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9