Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between LANDSAT-8 and NPP Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/10/2025
| Index | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Date (NPP) | Time (NPP) | Lat,Lon (NPP) | SZA (NPP ) | Distance(km) | Time Diff (sec) |
| 1 | 08/10/2025 | 21:35:58 | -70.27, 32.71 | 125.05 | 08/10/2025 | 21:35:19 | -70.28, 32.72 | 125.03 | 1.47 | 39 |
| 2 | 08/10/2025 | 22:25:25 | 70.17,-159.79 | 54.87 | 08/10/2025 | 22:26:04 | 70.19,-159.83 | 54.89 | 2.61 | 39 |
| 3 | 08/13/2025 | 13:02:51 | 70.77, -18.30 | 56.23 | 08/13/2025 | 13:01:41 | 70.84, -19.71 | 56.35 | 52.24 | 70 |
| 4 | 08/13/2025 | 13:52:29 | -70.22, 148.52 | 124.29 | 08/13/2025 | 13:52:13 | -70.25, 148.56 | 124.26 | 2.86 | 16 |
| 5 | 08/13/2025 | 14:41:56 | 70.12, -43.98 | 55.63 | 08/13/2025 | 14:42:57 | 70.11, -43.92 | 55.60 | 2.86 | 61 |
| 6 | 08/16/2025 | 05:19:29 | 70.32, 96.91 | 56.63 | 08/16/2025 | 05:18:26 | 70.34, 96.88 | 56.66 | 2.45 | 63 |
| 7 | 08/16/2025 | 06:08:59 | -70.21, -95.61 | 123.47 | 08/16/2025 | 06:09:07 | -70.22, -95.61 | 123.46 | 0.29 | 8 |
| 8 | 08/16/2025 | 06:58:34 | 69.67, 71.26 | 56.02 | 08/16/2025 | 06:59:43 | 69.66, 72.54 | 55.97 | 49.24 | 69 |
| 9 | 08/18/2025 | 21:35:59 | 70.29,-147.25 | 57.45 | 08/18/2025 | 21:35:19 | 70.27,-147.23 | 57.44 | 2.43 | 40 |
| 10 | 08/18/2025 | 22:25:29 | -70.19, 20.23 | 122.64 | 08/18/2025 | 22:26:01 | -70.19, 20.21 | 122.63 | 1.20 | 32 |
| 11 | 08/21/2025 | 13:02:49 | -71.00, 162.06 | 120.99 | 08/21/2025 | 13:01:41 | -71.06, 159.96 | 120.87 | 76.29 | 68 |
| 12 | 08/21/2025 | 13:52:28 | 70.24, -31.44 | 58.28 | 08/21/2025 | 13:52:12 | 70.26, -31.43 | 58.31 | 2.11 | 16 |
| 13 | 08/21/2025 | 14:41:58 | -70.14, 136.04 | 121.81 | 08/21/2025 | 14:42:53 | -70.12, 136.10 | 121.83 | 2.70 | 55 |
| 14 | 08/24/2025 | 05:19:30 | -70.34, -83.06 | 120.73 | 08/24/2025 | 05:18:21 | -70.31, -83.04 | 120.75 | 2.92 | 69 |
| 15 | 08/24/2025 | 06:08:57 | 70.22, 84.42 | 59.17 | 08/24/2025 | 06:09:05 | 70.20, 84.45 | 59.15 | 3.05 | 8 |
| 16 | 08/24/2025 | 06:58:31 | -69.90,-108.40 | 121.13 | 08/24/2025 | 06:59:43 | -69.90,-107.78 | 121.16 | 23.92 | 72 |
Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 8/10/2025
Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 08/10/2025 in txt file.
Historial Predications of SNOs between LANDSAT-8 and NPP