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: 11/30/2025
| 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 | 12/02/2025 | 04:04:52 | -70.42, -64.44 | 87.71 | 12/02/2025 | 04:05:38 | -70.44, -64.41 | 87.69 | 3.08 | 46 |
| 2 | 12/02/2025 | 04:55:37 | 70.32, 103.02 | 92.20 | 12/02/2025 | 04:55:06 | 70.29, 103.01 | 92.17 | 3.65 | 31 |
| 3 | 12/04/2025 | 19:31:22 | 71.03,-117.02 | 93.28 | 12/04/2025 | 19:32:30 | 70.93,-115.42 | 93.17 | 58.98 | 68 |
| 4 | 12/04/2025 | 20:21:52 | -70.39, 51.36 | 87.37 | 12/04/2025 | 20:22:07 | -70.38, 51.38 | 87.38 | 1.46 | 15 |
| 5 | 12/04/2025 | 21:12:37 | 70.30,-141.19 | 92.55 | 12/04/2025 | 21:11:34 | 70.28,-141.12 | 92.53 | 3.15 | 63 |
| 6 | 12/07/2025 | 11:48:11 | 70.44, -0.28 | 93.00 | 12/07/2025 | 11:49:06 | 70.46, -0.25 | 93.02 | 2.08 | 55 |
| 7 | 12/07/2025 | 12:38:52 | -70.32, 167.23 | 87.12 | 12/07/2025 | 12:38:36 | -70.35, 167.22 | 87.09 | 3.17 | 16 |
| 8 | 12/07/2025 | 13:29:23 | 69.49, -24.20 | 92.05 | 12/07/2025 | 13:28:16 | 69.52, -26.29 | 92.10 | 81.40 | 67 |
| 9 | 12/10/2025 | 04:05:11 | 70.38, 115.57 | 93.21 | 12/10/2025 | 04:05:35 | 70.39, 115.54 | 93.22 | 2.11 | 24 |
| 10 | 12/10/2025 | 04:55:53 | -70.31, -76.99 | 86.87 | 12/10/2025 | 04:55:05 | -70.29, -76.98 | 86.89 | 2.32 | 48 |
| 11 | 12/12/2025 | 19:31:27 | -70.47, 63.89 | 86.50 | 12/12/2025 | 19:32:36 | -70.47, 63.89 | 86.50 | 0.83 | 69 |
| 12 | 12/12/2025 | 20:22:12 | 70.38,-128.66 | 93.42 | 12/12/2025 | 20:22:03 | 70.36,-128.62 | 93.40 | 2.68 | 9 |
| 13 | 12/12/2025 | 21:12:49 | -70.04, 39.18 | 86.93 | 12/12/2025 | 21:11:36 | -70.09, 38.62 | 86.87 | 21.94 | 73 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/30/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 11/30/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9