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: 7/5/2025
| 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 | 07/05/2025 | 21:09:56 | -70.29, 38.93 | 132.43 | 07/05/2025 | 21:10:57 | -70.30, 38.96 | 132.43 | 1.51 | 61 |
| 2 | 07/05/2025 | 22:00:40 | 70.17,-153.56 | 47.45 | 07/05/2025 | 22:00:25 | 70.15,-153.62 | 47.43 | 3.10 | 15 |
| 3 | 07/05/2025 | 22:51:12 | -69.56, 14.67 | 133.19 | 07/05/2025 | 22:50:02 | -69.65, 13.32 | 133.04 | 53.40 | 70 |
| 4 | 07/08/2025 | 13:26:51 | -70.24, 154.79 | 132.18 | 07/08/2025 | 13:27:27 | -70.25, 154.77 | 132.18 | 0.99 | 36 |
| 5 | 07/08/2025 | 14:17:35 | 70.12, -37.71 | 47.69 | 07/08/2025 | 14:16:54 | 70.14, -37.74 | 47.72 | 3.25 | 41 |
| 6 | 07/11/2025 | 04:53:10 | 70.65, 102.60 | 48.58 | 07/11/2025 | 04:54:21 | 70.56, 103.48 | 48.45 | 33.84 | 71 |
| 7 | 07/11/2025 | 05:43:45 | -70.20, -89.37 | 131.89 | 07/11/2025 | 05:43:56 | -70.18, -89.44 | 131.91 | 3.49 | 11 |
| 8 | 07/11/2025 | 06:34:30 | 70.13, 78.05 | 48.04 | 07/11/2025 | 06:33:22 | 70.13, 78.12 | 48.05 | 2.59 | 68 |
| 9 | 07/13/2025 | 21:09:59 | 70.29,-141.05 | 48.59 | 07/13/2025 | 21:10:54 | 70.31,-141.01 | 48.60 | 2.57 | 55 |
| 10 | 07/13/2025 | 22:00:40 | -70.16, 26.47 | 131.55 | 07/13/2025 | 22:00:25 | -70.15, 26.40 | 131.55 | 2.87 | 15 |
| 11 | 07/13/2025 | 22:51:11 | 69.34,-165.01 | 47.61 | 07/13/2025 | 22:50:03 | 69.43,-166.95 | 47.78 | 76.76 | 68 |
| 12 | 07/16/2025 | 13:26:54 | 70.26, -25.22 | 48.98 | 07/16/2025 | 13:27:23 | 70.26, -25.19 | 48.98 | 1.13 | 29 |
| 13 | 07/16/2025 | 14:17:36 | -70.18, 142.22 | 131.10 | 07/16/2025 | 14:16:53 | -70.16, 142.30 | 131.12 | 3.53 | 43 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/5/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/05/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9