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: 9/24/2025
| 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 | 09/26/2025 | 12:37:23 | 70.33, -12.71 | 71.69 | 09/26/2025 | 12:38:31 | 70.34, -12.78 | 71.70 | 2.58 | 68 |
| 2 | 09/26/2025 | 13:28:06 | -70.27, 154.70 | 108.36 | 09/26/2025 | 13:28:00 | -70.28, 154.77 | 108.36 | 2.55 | 6 |
| 3 | 09/26/2025 | 14:18:44 | 69.86, -37.35 | 71.24 | 09/26/2025 | 14:17:32 | 69.90, -38.12 | 71.29 | 29.84 | 72 |
| 4 | 09/29/2025 | 04:54:21 | 70.30, 103.10 | 72.70 | 09/29/2025 | 04:55:00 | 70.29, 103.03 | 72.69 | 3.21 | 39 |
| 5 | 09/29/2025 | 05:45:04 | -70.23, -89.48 | 107.36 | 09/29/2025 | 05:44:29 | -70.23, -89.42 | 107.36 | 2.38 | 35 |
| 6 | 10/01/2025 | 20:20:45 | -70.84, 50.68 | 105.73 | 10/01/2025 | 20:21:55 | -70.74, 51.95 | 105.84 | 47.54 | 70 |
| 7 | 10/01/2025 | 21:11:20 | 70.28,-141.11 | 73.72 | 10/01/2025 | 21:11:28 | 70.31,-141.06 | 73.74 | 3.15 | 8 |
| 8 | 10/01/2025 | 22:02:02 | -70.16, 26.40 | 106.39 | 10/01/2025 | 22:00:59 | -70.14, 26.34 | 106.41 | 2.90 | 63 |
| 9 | 10/04/2025 | 12:37:35 | -70.36, 167.23 | 105.19 | 10/04/2025 | 12:38:30 | -70.34, 167.24 | 105.20 | 1.72 | 55 |
| 10 | 10/04/2025 | 13:28:18 | 70.22, -25.25 | 74.70 | 10/04/2025 | 13:27:57 | 70.23, -25.28 | 74.70 | 1.46 | 21 |
| 11 | 10/04/2025 | 14:18:47 | -69.41, 143.28 | 106.11 | 10/04/2025 | 14:17:39 | -69.47, 141.29 | 106.05 | 77.98 | 68 |
| 12 | 10/07/2025 | 04:04:08 | 71.32, 114.07 | 76.81 | 10/07/2025 | 04:05:13 | 71.21, 116.83 | 76.69 | 99.38 | 65 |
| 13 | 10/07/2025 | 04:54:33 | -70.31, -76.92 | 104.21 | 10/07/2025 | 04:54:58 | -70.29, -76.95 | 104.23 | 2.05 | 25 |
| 14 | 10/07/2025 | 05:45:16 | 70.17, 90.59 | 75.67 | 10/07/2025 | 05:44:25 | 70.17, 90.53 | 75.67 | 2.33 | 51 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/24/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/24/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9