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: 9/10/2025
| 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 | 09/13/2025 | 04:53:53 | 70.34, 103.11 | 66.55 | 09/13/2025 | 04:54:56 | 70.33, 103.09 | 66.54 | 1.44 | 63 |
| 2 | 09/13/2025 | 05:44:35 | -70.23, -89.41 | 113.55 | 09/13/2025 | 05:44:26 | -70.21, -89.44 | 113.57 | 2.71 | 9 |
| 3 | 09/13/2025 | 06:35:10 | 69.65, 78.78 | 65.87 | 09/13/2025 | 06:34:00 | 69.73, 77.52 | 65.97 | 49.49 | 70 |
| 4 | 09/15/2025 | 21:10:53 | 70.32,-141.10 | 67.56 | 09/15/2025 | 21:11:25 | 70.32,-141.03 | 67.56 | 2.84 | 32 |
| 5 | 09/15/2025 | 22:01:35 | -70.21, 26.39 | 112.55 | 09/15/2025 | 22:00:55 | -70.21, 26.44 | 112.54 | 2.17 | 40 |
| 6 | 09/18/2025 | 12:37:13 | -70.61, 166.89 | 111.13 | 09/18/2025 | 12:38:25 | -70.52, 167.50 | 111.23 | 24.64 | 72 |
| 7 | 09/18/2025 | 13:27:52 | 70.25, -25.23 | 68.52 | 09/18/2025 | 13:27:55 | 70.25, -25.25 | 68.52 | 0.65 | 3 |
| 8 | 09/18/2025 | 14:18:34 | -70.13, 142.26 | 111.59 | 09/18/2025 | 14:17:25 | -70.14, 142.22 | 111.58 | 1.63 | 69 |
| 9 | 09/21/2025 | 04:54:08 | -70.33, -76.91 | 110.38 | 09/21/2025 | 04:54:57 | -70.32, -76.91 | 110.39 | 0.99 | 49 |
| 10 | 09/21/2025 | 05:44:50 | 70.19, 90.62 | 69.49 | 09/21/2025 | 05:44:23 | 70.21, 90.58 | 69.52 | 3.10 | 27 |
| 11 | 09/23/2025 | 20:20:37 | 71.08,-129.69 | 71.41 | 09/23/2025 | 20:21:44 | 70.97,-127.67 | 71.29 | 74.07 | 67 |
| 12 | 09/23/2025 | 21:11:06 | -70.27, 38.95 | 109.40 | 09/23/2025 | 21:11:25 | -70.27, 38.90 | 109.41 | 1.61 | 19 |
| 13 | 09/23/2025 | 22:01:50 | 70.18,-153.61 | 70.53 | 09/23/2025 | 22:00:52 | 70.15,-153.61 | 70.50 | 3.21 | 58 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/10/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/10/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9