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: 7/15/2025
| 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 | 07/16/2025 | 13:26:54 | 70.25, -25.20 | 48.97 | 07/16/2025 | 13:27:30 | 70.24, -25.24 | 48.96 | 1.50 | 36 |
| 2 | 07/16/2025 | 14:17:35 | -70.13, 142.30 | 131.15 | 07/16/2025 | 14:17:00 | -70.13, 142.24 | 131.14 | 2.63 | 35 |
| 3 | 07/19/2025 | 04:53:16 | -70.93, -77.83 | 129.85 | 07/19/2025 | 04:54:25 | -70.83, -76.13 | 130.02 | 62.98 | 69 |
| 4 | 07/19/2025 | 05:43:49 | 70.22, 90.62 | 49.41 | 07/19/2025 | 05:44:01 | 70.23, 90.62 | 49.42 | 1.68 | 12 |
| 5 | 07/19/2025 | 06:34:31 | -70.15,-101.95 | 130.66 | 07/19/2025 | 06:33:31 | -70.13,-101.90 | 130.68 | 3.16 | 60 |
| 6 | 07/21/2025 | 21:09:59 | -70.33, 38.92 | 129.97 | 07/21/2025 | 21:11:04 | -70.32, 38.98 | 130.00 | 2.31 | 65 |
| 7 | 07/21/2025 | 22:00:43 | 70.19,-153.56 | 49.89 | 07/21/2025 | 22:00:31 | 70.20,-153.54 | 49.91 | 1.90 | 12 |
| 8 | 07/21/2025 | 22:51:18 | -69.75, 14.43 | 130.56 | 07/21/2025 | 22:50:06 | -69.83, 13.56 | 130.44 | 34.26 | 72 |
| 9 | 07/24/2025 | 13:26:53 | -70.25, 154.82 | 129.50 | 07/24/2025 | 13:27:35 | -70.28, 154.80 | 129.48 | 3.37 | 42 |
| 10 | 07/24/2025 | 14:17:38 | 70.17, -37.75 | 50.42 | 07/24/2025 | 14:17:02 | 70.16, -37.72 | 50.42 | 1.17 | 36 |
| 11 | 07/27/2025 | 04:53:18 | 70.93, 102.17 | 51.81 | 07/27/2025 | 04:54:27 | 70.82, 103.86 | 51.62 | 62.69 | 69 |
| 12 | 07/27/2025 | 05:43:48 | -70.23, -89.37 | 128.93 | 07/27/2025 | 05:44:06 | -70.23, -89.39 | 128.94 | 0.70 | 18 |
| 13 | 07/27/2025 | 06:34:32 | 70.10, 78.14 | 50.94 | 07/27/2025 | 06:33:33 | 70.11, 78.09 | 50.96 | 2.46 | 59 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/15/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 07/15/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9