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: 7/18/2025
| 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 | 07/19/2025 | 04:53:16 | -70.96, -77.89 | 129.81 | 07/19/2025 | 04:54:24 | -70.85, -76.10 | 130.00 | 66.15 | 68 |
| 2 | 07/19/2025 | 05:43:49 | 70.24, 90.58 | 49.44 | 07/19/2025 | 05:44:00 | 70.26, 90.66 | 49.45 | 3.18 | 11 |
| 3 | 07/19/2025 | 06:34:30 | -70.13,-101.92 | 130.68 | 07/19/2025 | 06:33:30 | -70.15,-101.87 | 130.66 | 2.96 | 60 |
| 4 | 07/21/2025 | 21:09:59 | -70.31, 38.95 | 129.99 | 07/21/2025 | 21:11:05 | -70.28, 38.93 | 130.03 | 2.86 | 66 |
| 5 | 07/21/2025 | 22:00:43 | 70.17,-153.52 | 49.87 | 07/21/2025 | 22:00:32 | 70.17,-153.58 | 49.88 | 2.52 | 11 |
| 6 | 07/21/2025 | 22:51:18 | -69.73, 14.46 | 130.58 | 07/21/2025 | 22:50:07 | -69.79, 13.52 | 130.48 | 36.89 | 71 |
| 7 | 07/24/2025 | 13:26:54 | -70.28, 154.77 | 129.47 | 07/24/2025 | 13:27:35 | -70.30, 154.83 | 129.46 | 3.00 | 41 |
| 8 | 07/24/2025 | 14:17:38 | 70.14, -37.71 | 50.40 | 07/24/2025 | 14:17:03 | 70.13, -37.76 | 50.39 | 2.36 | 35 |
| 9 | 07/27/2025 | 04:53:18 | 70.96, 102.12 | 51.84 | 07/27/2025 | 04:54:26 | 70.84, 103.89 | 51.64 | 65.74 | 68 |
| 10 | 07/27/2025 | 05:43:48 | -70.26, -89.42 | 128.90 | 07/27/2025 | 05:44:05 | -70.25, -89.36 | 128.92 | 2.98 | 17 |
| 11 | 07/27/2025 | 06:34:32 | 70.13, 78.10 | 50.97 | 07/27/2025 | 06:33:32 | 70.13, 78.12 | 50.98 | 1.03 | 60 |
| 12 | 07/29/2025 | 21:10:01 | 70.32,-141.05 | 51.79 | 07/29/2025 | 21:11:05 | 70.33,-140.99 | 51.78 | 2.69 | 64 |
| 13 | 07/29/2025 | 22:00:42 | -70.20, 26.46 | 128.34 | 07/29/2025 | 22:00:36 | -70.18, 26.42 | 128.36 | 2.27 | 6 |
| 14 | 07/29/2025 | 22:51:19 | 69.69,-165.47 | 51.14 | 07/29/2025 | 22:50:08 | 69.79,-166.49 | 51.28 | 40.59 | 71 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/18/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/18/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9