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: 7/27/2025
| 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 | 07/27/2025 | 04:53:18 | 70.96, 102.13 | 51.84 | 07/27/2025 | 04:54:26 | 70.82, 103.87 | 51.63 | 65.04 | 68 |
| 2 | 07/27/2025 | 05:43:47 | -70.22, -89.35 | 128.94 | 07/27/2025 | 05:44:05 | -70.22, -89.40 | 128.95 | 1.88 | 18 |
| 3 | 07/27/2025 | 06:34:32 | 70.12, 78.10 | 50.97 | 07/27/2025 | 06:33:32 | 70.12, 78.10 | 50.97 | 1.04 | 60 |
| 4 | 07/29/2025 | 21:10:01 | 70.32,-141.05 | 51.79 | 07/29/2025 | 21:11:05 | 70.30,-141.04 | 51.75 | 2.79 | 64 |
| 5 | 07/29/2025 | 22:00:42 | -70.21, 26.45 | 128.33 | 07/29/2025 | 22:00:35 | -70.19, 26.44 | 128.35 | 2.26 | 7 |
| 6 | 07/29/2025 | 22:51:19 | 69.69,-165.47 | 51.14 | 07/29/2025 | 22:50:08 | 69.75,-166.53 | 51.25 | 41.69 | 71 |
| 7 | 08/01/2025 | 13:26:55 | 70.26, -25.18 | 52.39 | 08/01/2025 | 13:27:35 | 70.24, -25.23 | 52.36 | 3.16 | 40 |
| 8 | 08/01/2025 | 14:17:36 | -70.15, 142.32 | 127.73 | 08/01/2025 | 14:17:05 | -70.14, 142.25 | 127.73 | 2.98 | 31 |
| 9 | 08/04/2025 | 04:53:18 | -71.03, -77.95 | 126.12 | 08/04/2025 | 04:54:26 | -70.93, -75.95 | 126.29 | 73.12 | 68 |
| 10 | 08/04/2025 | 05:43:49 | 70.21, 90.68 | 53.03 | 08/04/2025 | 05:44:04 | 70.22, 90.62 | 53.04 | 2.58 | 15 |
| 11 | 08/04/2025 | 06:34:30 | -70.14,-101.89 | 127.04 | 08/04/2025 | 06:33:33 | -70.12,-101.89 | 127.05 | 2.71 | 57 |
| 12 | 08/06/2025 | 21:09:58 | -70.30, 39.02 | 126.17 | 08/06/2025 | 21:11:05 | -70.30, 38.98 | 126.17 | 1.74 | 67 |
| 13 | 08/06/2025 | 22:00:43 | 70.21,-153.54 | 53.76 | 08/06/2025 | 22:00:32 | 70.18,-153.54 | 53.73 | 3.63 | 11 |
| 14 | 08/06/2025 | 22:51:18 | -69.78, 14.44 | 126.69 | 08/06/2025 | 22:50:06 | -69.86, 13.64 | 126.57 | 32.51 | 72 |
| 15 | 08/09/2025 | 13:26:53 | -70.30, 154.80 | 125.40 | 08/09/2025 | 13:27:33 | -70.30, 154.86 | 125.42 | 2.57 | 40 |
| 16 | 08/09/2025 | 14:17:37 | 70.17, -37.69 | 54.48 | 08/09/2025 | 14:17:00 | 70.18, -37.66 | 54.48 | 1.37 | 37 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/27/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/27/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9