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: 4/23/2025
| 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 | 04/24/2025 | 21:59:43 | -70.21, 26.38 | 123.04 | 04/24/2025 | 22:00:25 | -70.21, 26.35 | 123.05 | 1.05 | 42 |
| 2 | 04/24/2025 | 22:50:27 | 70.09,-166.11 | 56.82 | 04/24/2025 | 22:49:52 | 70.11,-166.15 | 56.85 | 2.98 | 35 |
| 3 | 04/27/2025 | 13:26:06 | 70.61, -25.80 | 56.52 | 04/27/2025 | 13:27:17 | 70.49, -24.99 | 56.38 | 32.79 | 71 |
| 4 | 04/27/2025 | 14:16:41 | -70.15, 142.24 | 123.97 | 04/27/2025 | 14:16:51 | -70.16, 142.16 | 123.96 | 3.19 | 10 |
| 5 | 04/27/2025 | 15:07:25 | 70.08, -50.34 | 55.95 | 04/27/2025 | 15:06:17 | 70.05, -50.34 | 55.93 | 3.46 | 68 |
| 6 | 04/30/2025 | 05:42:57 | 70.24, 90.54 | 55.31 | 04/30/2025 | 05:43:45 | 70.23, 90.53 | 55.29 | 1.81 | 48 |
| 7 | 04/30/2025 | 06:33:39 | -70.15,-101.99 | 124.81 | 04/30/2025 | 06:33:15 | -70.12,-102.00 | 124.84 | 3.40 | 24 |
| 8 | 05/02/2025 | 21:09:24 | -70.99, 37.78 | 124.71 | 05/02/2025 | 21:10:32 | -70.86, 39.72 | 124.89 | 71.79 | 68 |
| 9 | 05/02/2025 | 21:59:55 | 70.21,-153.64 | 54.47 | 05/02/2025 | 22:00:09 | 70.20,-153.62 | 54.46 | 0.90 | 14 |
| 10 | 05/02/2025 | 22:50:37 | -70.10, 13.84 | 125.66 | 05/02/2025 | 22:49:39 | -70.09, 13.86 | 125.66 | 1.45 | 58 |
| 11 | 05/05/2025 | 13:26:09 | -70.28, 154.71 | 126.23 | 05/05/2025 | 13:27:06 | -70.25, 154.71 | 126.26 | 2.98 | 57 |
| 12 | 05/05/2025 | 14:16:52 | 70.13, -37.75 | 53.61 | 05/05/2025 | 14:16:33 | 70.14, -37.81 | 53.62 | 2.56 | 19 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/23/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/23/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9