Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between LANDSAT-8 and NPP Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/9/2025
| Index | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Date (NPP) | Time (NPP) | Lat,Lon (NPP) | SZA (NPP ) | Distance(km) | Time Diff (sec) |
| 1 | 09/11/2025 | 20:46:35 | 70.33,-134.83 | 66.03 | 09/11/2025 | 20:45:23 | 70.35,-134.79 | 66.05 | 2.54 | 72 |
| 2 | 09/11/2025 | 21:36:04 | -70.27, 32.71 | 114.02 | 09/11/2025 | 21:36:05 | -70.25, 32.69 | 114.04 | 2.97 | 1 |
| 3 | 09/11/2025 | 22:25:34 | 70.01,-160.02 | 65.74 | 09/11/2025 | 22:26:46 | 69.98,-159.59 | 65.70 | 16.88 | 72 |
| 4 | 09/14/2025 | 13:03:04 | 70.30, -18.99 | 67.02 | 09/14/2025 | 13:02:23 | 70.32, -18.99 | 67.05 | 2.58 | 41 |
| 5 | 09/14/2025 | 13:52:34 | -70.19, 148.48 | 113.08 | 09/14/2025 | 13:53:05 | -70.22, 148.50 | 113.05 | 2.96 | 31 |
| 6 | 09/17/2025 | 04:29:58 | -70.79, -70.01 | 111.48 | 09/17/2025 | 04:28:48 | -70.87, -71.43 | 111.38 | 52.47 | 70 |
| 7 | 09/17/2025 | 05:19:33 | 70.25, 96.82 | 68.00 | 09/17/2025 | 05:19:22 | 70.25, 96.88 | 68.01 | 2.16 | 11 |
| 8 | 09/17/2025 | 06:09:03 | -70.14, -95.70 | 112.10 | 09/17/2025 | 06:10:04 | -70.14, -95.63 | 112.10 | 2.87 | 61 |
| 9 | 09/19/2025 | 20:46:34 | -70.35, 45.21 | 110.88 | 09/19/2025 | 20:45:38 | -70.33, 45.21 | 110.90 | 2.15 | 56 |
| 10 | 09/19/2025 | 21:36:01 | 70.24,-147.31 | 69.03 | 09/19/2025 | 21:36:22 | 70.24,-147.34 | 69.03 | 1.24 | 21 |
| 11 | 09/19/2025 | 22:25:44 | -69.42, 19.19 | 111.77 | 09/19/2025 | 22:26:51 | -69.43, 21.18 | 111.78 | 78.05 | 67 |
| 12 | 09/22/2025 | 12:13:17 | 71.19, -5.25 | 70.99 | 09/22/2025 | 12:12:10 | 71.23, -7.84 | 71.05 | 92.72 | 67 |
| 13 | 09/22/2025 | 13:03:01 | -70.32, 161.06 | 109.87 | 09/22/2025 | 13:02:37 | -70.32, 160.99 | 109.87 | 2.71 | 24 |
| 14 | 09/22/2025 | 13:52:29 | 70.15, -31.54 | 69.98 | 09/22/2025 | 13:53:20 | 70.18, -31.49 | 70.00 | 3.38 | 51 |
Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/9/2025
Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/09/2025 in txt file.
Historial Predications of SNOs between LANDSAT-8 and NPP