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: 4/19/2025
| 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 | 04/19/2025 | 14:16:30 | 70.19, -37.79 | 58.73 | 04/19/2025 | 14:16:58 | 70.22, -37.77 | 58.75 | 3.42 | 28 |
| 2 | 04/19/2025 | 15:07:12 | -70.11, 129.64 | 121.37 | 04/19/2025 | 15:06:28 | -70.10, 129.70 | 121.38 | 2.52 | 44 |
| 3 | 04/22/2025 | 05:42:46 | -70.34, -89.58 | 122.02 | 04/22/2025 | 05:43:58 | -70.29, -89.42 | 122.08 | 8.19 | 72 |
| 4 | 04/22/2025 | 06:33:29 | 70.16, 78.01 | 57.79 | 04/22/2025 | 06:33:26 | 70.13, 77.99 | 57.75 | 3.47 | 3 |
| 5 | 04/22/2025 | 07:24:09 | -69.97,-114.38 | 122.42 | 04/22/2025 | 07:22:56 | -70.02,-114.54 | 122.37 | 7.51 | 73 |
| 6 | 04/24/2025 | 21:59:43 | -70.21, 26.38 | 123.04 | 04/24/2025 | 22:00:25 | -70.22, 26.36 | 123.04 | 1.12 | 42 |
| 7 | 04/24/2025 | 22:50:27 | 70.09,-166.12 | 56.83 | 04/24/2025 | 22:49:52 | 70.11,-166.15 | 56.85 | 2.59 | 35 |
| 8 | 04/27/2025 | 13:26:06 | 70.61, -25.81 | 56.53 | 04/27/2025 | 13:27:17 | 70.50, -24.98 | 56.39 | 33.34 | 71 |
| 9 | 04/27/2025 | 14:16:41 | -70.15, 142.24 | 123.97 | 04/27/2025 | 14:16:51 | -70.17, 142.18 | 123.95 | 3.29 | 10 |
| 10 | 04/27/2025 | 15:07:26 | 70.09, -50.35 | 55.96 | 04/27/2025 | 15:06:18 | 70.06, -50.34 | 55.93 | 3.36 | 68 |
| 11 | 04/30/2025 | 05:42:57 | 70.25, 90.53 | 55.32 | 04/30/2025 | 05:43:45 | 70.24, 90.54 | 55.30 | 1.33 | 48 |
| 12 | 04/30/2025 | 06:33:39 | -70.15,-101.99 | 124.80 | 04/30/2025 | 06:33:15 | -70.13,-101.98 | 124.82 | 1.97 | 24 |
| 13 | 05/02/2025 | 21:09:24 | -70.99, 37.78 | 124.71 | 05/02/2025 | 21:10:32 | -70.88, 39.74 | 124.88 | 72.52 | 68 |
| 14 | 05/02/2025 | 21:59:55 | 70.21,-153.65 | 54.47 | 05/02/2025 | 22:00:09 | 70.21,-153.60 | 54.47 | 1.90 | 14 |
| 15 | 05/02/2025 | 22:50:37 | -70.11, 13.84 | 125.65 | 05/02/2025 | 22:49:39 | -70.11, 13.88 | 125.65 | 1.81 | 58 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/19/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/19/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9