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: 3/21/2025
| 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 | 03/21/2025 | 06:32:47 | 70.19, 78.07 | 69.82 | 03/21/2025 | 06:33:29 | 70.18, 78.12 | 69.80 | 2.36 | 42 |
| 2 | 03/21/2025 | 07:23:28 | -70.08,-114.44 | 110.31 | 03/21/2025 | 07:22:59 | -70.06,-114.42 | 110.33 | 2.53 | 29 |
| 3 | 03/23/2025 | 21:59:06 | -70.99, 25.27 | 110.39 | 03/23/2025 | 22:00:13 | -70.92, 27.48 | 110.54 | 80.32 | 67 |
| 4 | 03/23/2025 | 22:49:36 | 70.12,-166.02 | 68.68 | 03/23/2025 | 22:49:53 | 70.10,-166.09 | 68.67 | 3.19 | 17 |
| 5 | 03/23/2025 | 23:40:17 | -70.06, 1.39 | 111.40 | 03/23/2025 | 23:39:21 | -70.04, 1.46 | 111.41 | 3.05 | 56 |
| 6 | 03/26/2025 | 14:15:40 | -70.20, 142.35 | 112.28 | 03/26/2025 | 14:16:47 | -70.18, 142.28 | 112.31 | 3.23 | 67 |
| 7 | 03/26/2025 | 15:06:25 | 70.12, -50.22 | 67.62 | 03/26/2025 | 15:06:13 | 70.12, -50.15 | 67.63 | 2.62 | 12 |
| 8 | 03/26/2025 | 15:57:00 | -69.68, 117.76 | 112.85 | 03/26/2025 | 15:55:48 | -69.73, 116.94 | 112.76 | 32.08 | 72 |
| 9 | 03/29/2025 | 06:32:30 | -70.21,-101.87 | 113.32 | 03/29/2025 | 06:33:07 | -70.19,-101.79 | 113.35 | 3.50 | 37 |
| 10 | 03/29/2025 | 07:23:14 | 70.08, 65.64 | 66.53 | 03/29/2025 | 07:22:34 | 70.08, 65.69 | 66.53 | 2.05 | 40 |
| 11 | 03/31/2025 | 21:58:43 | 70.57,-153.96 | 66.03 | 03/31/2025 | 21:59:54 | 70.41,-153.18 | 65.84 | 33.85 | 71 |
| 12 | 03/31/2025 | 22:49:18 | -70.13, 14.05 | 114.45 | 03/31/2025 | 22:49:27 | -70.13, 14.05 | 114.45 | 0.43 | 9 |
| 13 | 03/31/2025 | 23:40:02 | 70.00,-178.45 | 65.41 | 03/31/2025 | 23:38:54 | 70.02,-178.47 | 65.43 | 1.64 | 68 |
| 14 | 04/03/2025 | 14:15:25 | 70.20, -37.57 | 64.61 | 04/03/2025 | 14:16:16 | 70.18, -37.60 | 64.58 | 2.77 | 51 |
| 15 | 04/03/2025 | 15:06:05 | -70.07, 129.95 | 115.54 | 04/03/2025 | 15:05:45 | -70.07, 129.87 | 115.55 | 2.83 | 20 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/21/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/21/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9