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: 4/20/2025
| 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 | 04/22/2025 | 05:42:46 | -70.34, -89.57 | 122.02 | 04/22/2025 | 05:43:58 | -70.29, -89.43 | 122.08 | 7.77 | 72 |
| 2 | 04/22/2025 | 06:33:29 | 70.16, 78.02 | 57.78 | 04/22/2025 | 06:33:26 | 70.13, 77.99 | 57.76 | 2.95 | 3 |
| 3 | 04/22/2025 | 07:24:09 | -69.97,-114.38 | 122.43 | 04/22/2025 | 07:22:56 | -70.02,-114.54 | 122.37 | 7.92 | 73 |
| 4 | 04/24/2025 | 21:59:43 | -70.21, 26.39 | 123.05 | 04/24/2025 | 22:00:25 | -70.22, 26.36 | 123.04 | 1.55 | 42 |
| 5 | 04/24/2025 | 22:50:27 | 70.08,-166.11 | 56.82 | 04/24/2025 | 22:49:52 | 70.11,-166.15 | 56.85 | 3.15 | 35 |
| 6 | 04/27/2025 | 13:26:06 | 70.60, -25.79 | 56.52 | 04/27/2025 | 13:27:17 | 70.49, -24.99 | 56.38 | 32.50 | 71 |
| 7 | 04/27/2025 | 14:16:42 | -70.19, 142.17 | 123.92 | 04/27/2025 | 14:16:50 | -70.21, 142.25 | 123.91 | 3.55 | 8 |
| 8 | 04/27/2025 | 15:07:26 | 70.08, -50.34 | 55.95 | 04/27/2025 | 15:06:18 | 70.05, -50.34 | 55.93 | 3.17 | 68 |
| 9 | 04/30/2025 | 05:42:57 | 70.24, 90.55 | 55.30 | 04/30/2025 | 05:43:45 | 70.23, 90.52 | 55.29 | 1.70 | 48 |
| 10 | 04/30/2025 | 06:33:39 | -70.14,-101.98 | 124.82 | 04/30/2025 | 06:33:15 | -70.12,-102.00 | 124.83 | 2.42 | 24 |
| 11 | 05/02/2025 | 21:09:24 | -70.98, 37.80 | 124.72 | 05/02/2025 | 21:10:32 | -70.86, 39.71 | 124.89 | 70.91 | 68 |
| 12 | 05/02/2025 | 21:59:55 | 70.20,-153.63 | 54.46 | 05/02/2025 | 22:00:09 | 70.20,-153.62 | 54.45 | 0.33 | 14 |
| 13 | 05/02/2025 | 22:50:37 | -70.09, 13.86 | 125.67 | 05/02/2025 | 22:49:39 | -70.09, 13.86 | 125.67 | 0.30 | 58 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/20/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 04/20/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9