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: 9/23/2025
| 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 | 09/23/2025 | 22:01:50 | 70.20,-153.64 | 70.54 | 09/23/2025 | 22:00:56 | 70.21,-153.57 | 70.55 | 2.74 | 54 |
| 2 | 09/26/2025 | 12:37:23 | 70.37, -12.77 | 71.73 | 09/26/2025 | 12:38:30 | 70.35, -12.75 | 71.71 | 1.76 | 67 |
| 3 | 09/26/2025 | 13:28:05 | -70.25, 154.73 | 108.38 | 09/26/2025 | 13:28:00 | -70.24, 154.72 | 108.39 | 1.33 | 5 |
| 4 | 09/26/2025 | 14:18:43 | 69.84, -37.33 | 71.22 | 09/26/2025 | 14:17:31 | 69.92, -38.10 | 71.31 | 30.75 | 72 |
| 5 | 09/29/2025 | 04:54:21 | 70.29, 103.13 | 72.69 | 09/29/2025 | 04:55:00 | 70.30, 103.06 | 72.70 | 3.29 | 39 |
| 6 | 09/29/2025 | 05:45:04 | -70.22, -89.45 | 107.37 | 09/29/2025 | 05:44:30 | -70.19, -89.47 | 107.40 | 2.59 | 34 |
| 7 | 10/01/2025 | 20:20:46 | -70.87, 50.63 | 105.70 | 10/01/2025 | 20:21:55 | -70.76, 51.98 | 105.82 | 51.03 | 69 |
| 8 | 10/01/2025 | 21:11:20 | 70.27,-141.08 | 73.71 | 10/01/2025 | 21:11:29 | 70.27,-141.10 | 73.71 | 1.11 | 9 |
| 9 | 10/01/2025 | 22:02:03 | -70.19, 26.35 | 106.36 | 10/01/2025 | 22:00:59 | -70.17, 26.37 | 106.39 | 3.33 | 64 |
| 10 | 10/04/2025 | 12:37:35 | -70.34, 167.26 | 105.20 | 10/04/2025 | 12:38:31 | -70.32, 167.20 | 105.23 | 3.43 | 56 |
| 11 | 10/04/2025 | 13:28:19 | 70.26, -25.30 | 74.73 | 10/04/2025 | 13:27:57 | 70.26, -25.24 | 74.73 | 2.46 | 22 |
| 12 | 10/04/2025 | 14:18:47 | -69.44, 143.23 | 106.08 | 10/04/2025 | 14:17:38 | -69.49, 141.33 | 106.02 | 74.49 | 69 |
| 13 | 10/07/2025 | 04:04:07 | 71.31, 114.10 | 76.79 | 10/07/2025 | 04:05:12 | 71.24, 116.88 | 76.72 | 99.44 | 65 |
| 14 | 10/07/2025 | 04:54:33 | -70.34, -76.98 | 104.18 | 10/07/2025 | 04:54:57 | -70.32, -76.90 | 104.20 | 3.39 | 24 |
| 15 | 10/07/2025 | 05:45:16 | 70.21, 90.54 | 75.71 | 10/07/2025 | 05:44:24 | 70.21, 90.58 | 75.71 | 1.41 | 52 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/23/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/23/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9