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: 3/11/2025
| 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 | 03/13/2025 | 06:32:56 | -70.14,-101.91 | 107.05 | 03/13/2025 | 06:33:42 | -70.16,-101.95 | 107.04 | 2.42 | 46 |
| 2 | 03/13/2025 | 07:23:41 | 70.06, 65.52 | 72.85 | 03/13/2025 | 07:23:09 | 70.05, 65.55 | 72.85 | 1.10 | 32 |
| 3 | 03/15/2025 | 21:59:21 | 71.02,-154.86 | 72.83 | 03/15/2025 | 22:00:27 | 70.92,-152.57 | 72.64 | 83.80 | 66 |
| 4 | 03/15/2025 | 22:49:48 | -70.16, 13.84 | 108.09 | 03/15/2025 | 22:50:09 | -70.15, 13.92 | 108.12 | 3.35 | 21 |
| 5 | 03/15/2025 | 23:40:32 | 70.03,-178.64 | 71.76 | 03/15/2025 | 23:39:36 | 70.04,-178.59 | 71.77 | 2.51 | 56 |
| 6 | 03/18/2025 | 14:15:57 | 70.21, -37.76 | 70.91 | 03/18/2025 | 14:17:06 | 70.21, -37.74 | 70.90 | 0.97 | 69 |
| 7 | 03/18/2025 | 15:06:38 | -70.09, 129.75 | 109.23 | 03/18/2025 | 15:06:36 | -70.10, 129.74 | 109.23 | 0.99 | 2 |
| 8 | 03/18/2025 | 15:57:18 | 69.75, -62.43 | 70.40 | 03/18/2025 | 15:56:06 | 69.82, -63.00 | 70.50 | 23.62 | 72 |
| 9 | 03/21/2025 | 06:32:47 | 70.15, 78.13 | 69.78 | 03/21/2025 | 06:33:32 | 70.17, 78.10 | 69.80 | 2.29 | 45 |
| 10 | 03/21/2025 | 07:23:29 | -70.08,-114.45 | 110.31 | 03/21/2025 | 07:23:02 | -70.07,-114.42 | 110.32 | 2.17 | 27 |
| 11 | 03/23/2025 | 21:59:09 | -71.12, 25.04 | 110.25 | 03/23/2025 | 22:00:15 | -71.03, 27.64 | 110.43 | 94.02 | 66 |
| 12 | 03/23/2025 | 22:49:37 | 70.16,-166.08 | 68.73 | 03/23/2025 | 22:49:56 | 70.15,-166.03 | 68.71 | 2.05 | 19 |
| 13 | 03/23/2025 | 23:40:18 | -70.03, 1.43 | 111.42 | 03/23/2025 | 23:39:26 | -70.05, 1.45 | 111.41 | 1.83 | 52 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/11/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 03/11/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9