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: 5/4/2025
| 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 | 05/05/2025 | 13:26:11 | -70.43, 154.46 | 126.07 | 05/05/2025 | 13:27:22 | -70.39, 154.84 | 126.12 | 14.67 | 71 |
| 2 | 05/05/2025 | 14:16:52 | 70.16, -37.81 | 53.65 | 05/05/2025 | 14:16:51 | 70.18, -37.82 | 53.67 | 2.11 | 1 |
| 3 | 05/05/2025 | 15:07:34 | -70.07, 129.66 | 126.47 | 05/05/2025 | 15:06:21 | -70.07, 129.65 | 126.46 | 0.54 | 73 |
| 4 | 05/08/2025 | 05:43:06 | -70.25, -89.49 | 126.99 | 05/08/2025 | 05:43:52 | -70.23, -89.51 | 127.02 | 2.28 | 46 |
| 5 | 05/08/2025 | 06:33:50 | 70.15, 77.98 | 52.89 | 05/08/2025 | 06:33:19 | 70.13, 77.98 | 52.87 | 2.15 | 31 |
| 6 | 05/10/2025 | 21:09:32 | 70.88,-142.05 | 52.96 | 05/10/2025 | 21:10:41 | 70.75,-140.49 | 52.80 | 58.47 | 69 |
| 7 | 05/10/2025 | 22:00:03 | -70.19, 26.38 | 127.77 | 05/10/2025 | 22:00:19 | -70.21, 26.33 | 127.75 | 2.62 | 16 |
| 8 | 05/10/2025 | 22:50:47 | 70.09,-166.16 | 52.13 | 05/10/2025 | 22:49:46 | 70.10,-166.18 | 52.14 | 1.06 | 61 |
| 9 | 05/13/2025 | 13:26:19 | 70.30, -25.35 | 51.69 | 05/13/2025 | 13:27:15 | 70.31, -25.27 | 51.69 | 2.99 | 56 |
| 10 | 05/13/2025 | 14:17:01 | -70.19, 142.15 | 128.44 | 05/13/2025 | 14:16:45 | -70.20, 142.21 | 128.43 | 2.52 | 16 |
| 11 | 05/13/2025 | 15:07:32 | 69.40, -49.37 | 50.75 | 05/13/2025 | 15:06:24 | 69.42, -51.22 | 50.81 | 72.08 | 68 |
| 12 | 05/16/2025 | 05:43:15 | 70.26, 90.48 | 51.02 | 05/16/2025 | 05:43:40 | 70.26, 90.56 | 51.01 | 2.76 | 25 |
| 13 | 05/16/2025 | 06:33:57 | -70.14,-102.01 | 129.12 | 05/16/2025 | 06:33:10 | -70.15,-101.96 | 129.10 | 2.45 | 47 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/4/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 05/04/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9