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: 3/28/2025
| 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 | 03/29/2025 | 06:32:29 | -70.19,-101.84 | 113.34 | 03/29/2025 | 06:33:31 | -70.20,-101.88 | 113.34 | 1.97 | 62 |
| 2 | 03/29/2025 | 07:23:14 | 70.10, 65.60 | 66.56 | 03/29/2025 | 07:22:58 | 70.10, 65.62 | 66.55 | 1.13 | 16 |
| 3 | 03/29/2025 | 08:13:46 | -69.52,-126.20 | 114.07 | 03/29/2025 | 08:12:36 | -69.54,-127.51 | 113.99 | 51.00 | 70 |
| 4 | 03/31/2025 | 22:49:18 | -70.17, 14.00 | 114.41 | 03/31/2025 | 22:49:58 | -70.19, 14.00 | 114.39 | 2.87 | 40 |
| 5 | 03/31/2025 | 23:40:03 | 70.09,-178.57 | 65.50 | 03/31/2025 | 23:39:25 | 70.09,-178.51 | 65.50 | 2.23 | 38 |
| 6 | 04/03/2025 | 14:15:37 | 70.86, -38.63 | 65.30 | 04/03/2025 | 14:16:45 | 70.78, -36.88 | 65.16 | 64.63 | 68 |
| 7 | 04/03/2025 | 15:06:07 | -70.16, 129.81 | 115.45 | 04/03/2025 | 15:06:24 | -70.18, 129.86 | 115.44 | 2.94 | 17 |
| 8 | 04/03/2025 | 15:56:51 | 70.03, -62.69 | 64.41 | 04/03/2025 | 15:55:52 | 70.01, -62.73 | 64.39 | 2.79 | 59 |
| 9 | 04/06/2025 | 06:32:13 | 70.24, 78.17 | 63.63 | 04/06/2025 | 06:33:19 | 70.21, 78.17 | 63.59 | 3.65 | 66 |
| 10 | 04/06/2025 | 07:22:54 | -70.12,-114.32 | 116.52 | 04/06/2025 | 07:22:49 | -70.10,-114.35 | 116.53 | 1.92 | 5 |
| 11 | 04/06/2025 | 08:13:32 | 69.68, 53.65 | 63.01 | 04/06/2025 | 08:12:21 | 69.71, 52.75 | 63.08 | 35.20 | 71 |
| 12 | 04/08/2025 | 22:49:00 | 70.17,-165.91 | 62.54 | 04/08/2025 | 22:49:43 | 70.18,-165.98 | 62.55 | 3.08 | 43 |
| 13 | 04/08/2025 | 23:39:42 | -70.09, 1.53 | 117.56 | 04/08/2025 | 23:39:13 | -70.08, 1.51 | 117.57 | 1.71 | 29 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/28/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/28/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9