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: 9/28/2025
| 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 | 09/29/2025 | 04:54:21 | 70.30, 103.10 | 72.70 | 09/29/2025 | 04:55:00 | 70.29, 103.03 | 72.69 | 3.12 | 39 |
| 2 | 09/29/2025 | 05:45:04 | -70.24, -89.48 | 107.35 | 09/29/2025 | 05:44:29 | -70.23, -89.43 | 107.37 | 2.33 | 35 |
| 3 | 10/01/2025 | 20:20:45 | -70.84, 50.68 | 105.73 | 10/01/2025 | 20:21:55 | -70.73, 51.92 | 105.85 | 47.29 | 70 |
| 4 | 10/01/2025 | 21:11:20 | 70.28,-141.10 | 73.72 | 10/01/2025 | 21:11:28 | 70.30,-141.07 | 73.74 | 2.35 | 8 |
| 5 | 10/01/2025 | 22:02:02 | -70.16, 26.40 | 106.39 | 10/01/2025 | 22:00:58 | -70.18, 26.40 | 106.37 | 2.69 | 64 |
| 6 | 10/04/2025 | 12:37:35 | -70.36, 167.22 | 105.18 | 10/04/2025 | 12:38:29 | -70.37, 167.28 | 105.17 | 2.57 | 54 |
| 7 | 10/04/2025 | 13:28:18 | 70.22, -25.25 | 74.69 | 10/04/2025 | 13:27:57 | 70.21, -25.31 | 74.68 | 2.58 | 21 |
| 8 | 10/04/2025 | 14:18:47 | -69.41, 143.28 | 106.11 | 10/04/2025 | 14:17:39 | -69.44, 141.26 | 106.08 | 79.06 | 68 |
| 9 | 10/07/2025 | 04:04:07 | 71.27, 114.16 | 76.76 | 10/07/2025 | 04:05:13 | 71.17, 116.77 | 76.65 | 93.98 | 66 |
| 10 | 10/07/2025 | 04:54:33 | -70.31, -76.93 | 104.21 | 10/07/2025 | 04:54:57 | -70.30, -76.93 | 104.22 | 0.96 | 24 |
| 11 | 10/07/2025 | 05:45:16 | 70.17, 90.60 | 75.67 | 10/07/2025 | 05:44:24 | 70.19, 90.56 | 75.69 | 2.44 | 52 |
| 12 | 10/09/2025 | 20:20:47 | 70.35,-128.54 | 76.84 | 10/09/2025 | 20:21:53 | 70.35,-128.60 | 76.84 | 2.45 | 66 |
| 13 | 10/09/2025 | 21:11:30 | -70.27, 38.90 | 103.23 | 10/09/2025 | 21:11:23 | -70.24, 38.88 | 103.26 | 3.43 | 7 |
| 14 | 10/09/2025 | 22:02:06 | 69.77,-153.02 | 76.29 | 10/09/2025 | 22:00:55 | 69.85,-154.03 | 76.37 | 39.84 | 71 |
| 15 | 10/12/2025 | 12:37:45 | 70.32, -12.73 | 77.82 | 10/12/2025 | 12:38:18 | 70.35, -12.70 | 77.85 | 3.40 | 33 |
| 16 | 10/12/2025 | 13:28:28 | -70.24, 154.71 | 102.25 | 10/12/2025 | 13:27:48 | -70.25, 154.79 | 102.25 | 2.97 | 40 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/28/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/28/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9