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: 9/30/2025
| 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 | 10/01/2025 | 20:20:45 | -70.85, 50.66 | 105.72 | 10/01/2025 | 20:21:55 | -70.71, 51.90 | 105.87 | 48.11 | 70 |
| 2 | 10/01/2025 | 21:11:20 | 70.29,-141.12 | 73.73 | 10/01/2025 | 21:11:28 | 70.29,-141.09 | 73.72 | 1.37 | 8 |
| 3 | 10/01/2025 | 22:02:02 | -70.17, 26.38 | 106.38 | 10/01/2025 | 22:00:58 | -70.17, 26.38 | 106.38 | 0.21 | 64 |
| 4 | 10/04/2025 | 12:37:35 | -70.37, 167.20 | 105.17 | 10/04/2025 | 12:38:29 | -70.36, 167.27 | 105.19 | 2.77 | 54 |
| 5 | 10/04/2025 | 13:28:18 | 70.23, -25.26 | 74.71 | 10/04/2025 | 13:27:56 | 70.26, -25.24 | 74.73 | 2.77 | 22 |
| 6 | 10/04/2025 | 14:18:47 | -69.43, 143.26 | 106.09 | 10/04/2025 | 14:17:39 | -69.43, 141.24 | 106.09 | 78.79 | 68 |
| 7 | 10/07/2025 | 04:04:07 | 71.29, 114.13 | 76.77 | 10/07/2025 | 04:05:13 | 71.17, 116.76 | 76.65 | 94.84 | 66 |
| 8 | 10/07/2025 | 04:54:33 | -70.33, -76.95 | 104.19 | 10/07/2025 | 04:54:57 | -70.29, -76.94 | 104.22 | 3.44 | 24 |
| 9 | 10/07/2025 | 05:45:16 | 70.19, 90.57 | 75.69 | 10/07/2025 | 05:44:24 | 70.19, 90.55 | 75.68 | 0.91 | 52 |
| 10 | 10/09/2025 | 20:20:48 | 70.36,-128.56 | 76.86 | 10/09/2025 | 20:21:54 | 70.35,-128.60 | 76.84 | 2.13 | 66 |
| 11 | 10/09/2025 | 21:11:30 | -70.24, 38.95 | 103.26 | 10/09/2025 | 21:11:24 | -70.24, 38.88 | 103.26 | 2.82 | 6 |
| 12 | 10/09/2025 | 22:02:06 | 69.78,-153.05 | 76.30 | 10/09/2025 | 22:00:55 | 69.85,-154.03 | 76.37 | 38.44 | 71 |
| 13 | 10/12/2025 | 12:37:45 | 70.34, -12.76 | 77.84 | 10/12/2025 | 12:38:18 | 70.36, -12.68 | 77.86 | 3.62 | 33 |
| 14 | 10/12/2025 | 13:28:27 | -70.21, 154.76 | 102.28 | 10/12/2025 | 13:27:49 | -70.20, 154.72 | 102.29 | 1.94 | 38 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/30/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/30/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9