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: 4/15/2025
| 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 | 04/16/2025 | 21:59:31 | 70.21,-153.59 | 59.69 | 04/16/2025 | 22:00:31 | 70.23,-153.63 | 59.70 | 2.85 | 60 |
| 2 | 04/16/2025 | 22:50:13 | -70.14, 13.85 | 120.41 | 04/16/2025 | 22:50:01 | -70.12, 13.84 | 120.43 | 1.99 | 12 |
| 3 | 04/16/2025 | 23:40:47 | 69.47,-177.85 | 58.89 | 04/16/2025 | 23:39:37 | 69.52,-179.35 | 58.99 | 58.59 | 70 |
| 4 | 04/19/2025 | 14:16:30 | 70.17, -37.77 | 58.71 | 04/19/2025 | 14:16:59 | 70.17, -37.83 | 58.71 | 2.47 | 29 |
| 5 | 04/19/2025 | 15:07:12 | -70.09, 129.68 | 121.39 | 04/19/2025 | 15:06:28 | -70.12, 129.72 | 121.36 | 3.26 | 44 |
| 6 | 04/22/2025 | 05:42:46 | -70.32, -89.55 | 122.04 | 04/22/2025 | 05:43:58 | -70.28, -89.43 | 122.09 | 6.20 | 72 |
| 7 | 04/22/2025 | 06:33:29 | 70.15, 78.03 | 57.77 | 04/22/2025 | 06:33:25 | 70.17, 78.06 | 57.80 | 3.18 | 4 |
| 8 | 04/22/2025 | 07:24:09 | -69.95,-114.36 | 122.44 | 04/22/2025 | 07:22:56 | -70.01,-114.54 | 122.38 | 9.44 | 73 |
| 9 | 04/24/2025 | 21:59:43 | -70.25, 26.32 | 123.00 | 04/24/2025 | 22:00:23 | -70.24, 26.40 | 123.02 | 3.01 | 40 |
| 10 | 04/24/2025 | 22:50:27 | 70.13,-166.19 | 56.87 | 04/24/2025 | 22:49:50 | 70.13,-166.12 | 56.86 | 2.64 | 37 |
| 11 | 04/27/2025 | 13:26:04 | 70.55, -25.71 | 56.47 | 04/27/2025 | 13:27:15 | 70.47, -25.00 | 56.36 | 27.91 | 71 |
| 12 | 04/27/2025 | 14:16:41 | -70.19, 142.18 | 123.92 | 04/27/2025 | 14:16:48 | -70.20, 142.24 | 123.92 | 2.74 | 7 |
| 13 | 04/27/2025 | 15:07:25 | 70.08, -50.34 | 55.95 | 04/27/2025 | 15:06:15 | 70.09, -50.28 | 55.96 | 2.40 | 70 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/15/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/15/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9