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: 12/3/2025
| 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 | 12/04/2025 | 19:31:21 | 71.03,-117.01 | 93.28 | 12/04/2025 | 19:32:30 | 70.87,-115.51 | 93.11 | 57.36 | 69 |
| 2 | 12/04/2025 | 20:21:52 | -70.39, 51.36 | 87.37 | 12/04/2025 | 20:22:07 | -70.37, 51.37 | 87.39 | 2.06 | 15 |
| 3 | 12/04/2025 | 21:12:37 | 70.29,-141.18 | 92.54 | 12/04/2025 | 21:11:34 | 70.27,-141.13 | 92.52 | 3.01 | 63 |
| 4 | 12/07/2025 | 11:48:11 | 70.44, -0.28 | 93.00 | 12/07/2025 | 11:49:06 | 70.44, -0.28 | 93.00 | 0.28 | 55 |
| 5 | 12/07/2025 | 12:38:52 | -70.32, 167.22 | 87.12 | 12/07/2025 | 12:38:36 | -70.33, 167.19 | 87.11 | 1.40 | 16 |
| 6 | 12/07/2025 | 13:29:23 | 69.49, -24.20 | 92.05 | 12/07/2025 | 13:28:16 | 69.51, -26.31 | 92.08 | 82.12 | 67 |
| 7 | 12/10/2025 | 04:05:11 | 70.38, 115.57 | 93.21 | 12/10/2025 | 04:05:35 | 70.36, 115.49 | 93.19 | 3.65 | 24 |
| 8 | 12/10/2025 | 04:55:53 | -70.32, -77.00 | 86.86 | 12/10/2025 | 04:55:04 | -70.31, -76.95 | 86.87 | 2.00 | 49 |
| 9 | 12/12/2025 | 19:31:27 | -70.47, 63.88 | 86.49 | 12/12/2025 | 19:32:35 | -70.47, 63.89 | 86.50 | 0.74 | 68 |
| 10 | 12/12/2025 | 20:22:11 | 70.33,-128.59 | 93.37 | 12/12/2025 | 20:22:02 | 70.36,-128.62 | 93.40 | 3.20 | 9 |
| 11 | 12/12/2025 | 21:12:48 | -70.00, 39.25 | 86.97 | 12/12/2025 | 21:11:36 | -70.03, 38.54 | 86.93 | 27.06 | 72 |
| 12 | 12/15/2025 | 11:48:26 | -70.43, 179.71 | 86.38 | 12/15/2025 | 11:49:01 | -70.44, 179.74 | 86.37 | 1.62 | 35 |
| 13 | 12/15/2025 | 12:39:11 | 70.35, -12.85 | 93.54 | 12/15/2025 | 12:38:28 | 70.33, -12.78 | 93.53 | 3.41 | 43 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/3/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 12/03/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9