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: 10/16/2025
| 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 | 10/17/2025 | 20:20:57 | -70.41, 51.35 | 100.12 | 10/17/2025 | 20:22:09 | -70.38, 51.38 | 100.16 | 4.25 | 72 |
| 2 | 10/17/2025 | 21:11:40 | 70.27,-141.11 | 79.75 | 10/17/2025 | 21:11:36 | 70.27,-141.13 | 79.75 | 1.16 | 4 |
| 3 | 10/17/2025 | 22:02:20 | -70.05, 26.55 | 100.46 | 10/17/2025 | 22:01:07 | -70.11, 26.27 | 100.41 | 12.55 | 73 |
| 4 | 10/20/2025 | 12:37:53 | -70.36, 167.20 | 99.21 | 10/20/2025 | 12:38:37 | -70.35, 167.22 | 99.22 | 1.72 | 44 |
| 5 | 10/20/2025 | 13:28:36 | 70.22, -25.26 | 80.66 | 10/20/2025 | 13:28:04 | 70.24, -25.29 | 80.69 | 3.11 | 32 |
| 6 | 10/23/2025 | 04:04:18 | 70.96, 114.68 | 82.33 | 10/23/2025 | 04:05:27 | 70.89, 116.28 | 82.26 | 58.74 | 69 |
| 7 | 10/23/2025 | 04:54:50 | -70.32, -76.96 | 98.30 | 10/23/2025 | 04:55:05 | -70.34, -76.90 | 98.28 | 3.11 | 15 |
| 8 | 10/23/2025 | 05:45:33 | 70.18, 90.58 | 81.57 | 10/23/2025 | 05:44:33 | 70.18, 90.50 | 81.57 | 2.87 | 60 |
| 9 | 10/25/2025 | 20:21:05 | 70.40,-128.63 | 82.70 | 10/25/2025 | 20:22:03 | 70.40,-128.56 | 82.70 | 2.84 | 58 |
| 10 | 10/25/2025 | 21:11:47 | -70.29, 38.86 | 97.41 | 10/25/2025 | 21:11:33 | -70.30, 38.92 | 97.40 | 2.50 | 14 |
| 11 | 10/25/2025 | 22:02:19 | 69.56,-152.72 | 81.89 | 10/25/2025 | 22:01:10 | 69.63,-154.37 | 81.95 | 64.22 | 69 |
| 12 | 10/28/2025 | 12:38:01 | 70.33, -12.74 | 83.53 | 10/28/2025 | 12:38:31 | 70.32, -12.79 | 83.52 | 1.85 | 30 |
| 13 | 10/28/2025 | 13:28:43 | -70.21, 154.75 | 96.58 | 10/28/2025 | 13:28:01 | -70.22, 154.70 | 96.58 | 2.11 | 42 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/16/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/16/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9