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: 10/17/2025
| 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 | -70.43, 51.32 | 100.10 | 10/17/2025 | 20:22:08 | -70.42, 51.43 | 100.12 | 4.86 | 71 |
| 2 | 10/17/2025 | 21:11:40 | 70.29,-141.14 | 79.77 | 10/17/2025 | 21:11:36 | 70.26,-141.15 | 79.74 | 3.13 | 4 |
| 3 | 10/17/2025 | 22:02:20 | -70.07, 26.52 | 100.44 | 10/17/2025 | 22:01:07 | -70.09, 26.24 | 100.42 | 10.62 | 73 |
| 4 | 10/20/2025 | 12:37:53 | -70.33, 167.25 | 99.24 | 10/20/2025 | 12:38:38 | -70.34, 167.21 | 99.23 | 1.61 | 45 |
| 5 | 10/20/2025 | 13:28:37 | 70.24, -25.29 | 80.69 | 10/20/2025 | 13:28:05 | 70.23, -25.30 | 80.68 | 0.64 | 32 |
| 6 | 10/23/2025 | 04:04:18 | 70.99, 114.64 | 82.36 | 10/23/2025 | 04:05:27 | 70.89, 116.28 | 82.26 | 60.76 | 69 |
| 7 | 10/23/2025 | 04:54:49 | -70.30, -76.92 | 98.33 | 10/23/2025 | 04:55:06 | -70.29, -76.98 | 98.34 | 2.57 | 17 |
| 8 | 10/23/2025 | 05:45:33 | 70.20, 90.54 | 81.60 | 10/23/2025 | 05:44:33 | 70.18, 90.50 | 81.57 | 3.07 | 60 |
| 9 | 10/25/2025 | 20:21:04 | 70.38,-128.60 | 82.68 | 10/25/2025 | 20:22:04 | 70.36,-128.62 | 82.66 | 2.75 | 60 |
| 10 | 10/25/2025 | 21:11:46 | -70.27, 38.89 | 97.43 | 10/25/2025 | 21:11:34 | -70.26, 38.86 | 97.44 | 2.10 | 12 |
| 11 | 10/25/2025 | 22:02:19 | 69.59,-152.77 | 81.92 | 10/25/2025 | 22:01:10 | 69.65,-154.35 | 81.96 | 61.49 | 69 |
| 12 | 10/28/2025 | 12:38:01 | 70.37, -12.80 | 83.57 | 10/28/2025 | 12:38:31 | 70.35, -12.75 | 83.55 | 2.90 | 30 |
| 13 | 10/28/2025 | 13:28:43 | -70.25, 154.69 | 96.54 | 10/28/2025 | 13:28:01 | -70.25, 154.74 | 96.55 | 1.94 | 42 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/17/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 10/17/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9