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: 11/23/2025
| 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 | 11/24/2025 | 04:04:34 | 70.42, 115.60 | 90.90 | 11/24/2025 | 04:05:35 | 70.40, 115.55 | 90.88 | 2.14 | 61 |
| 2 | 11/24/2025 | 04:55:16 | -70.35, -76.97 | 89.17 | 11/24/2025 | 04:55:04 | -70.34, -76.90 | 89.18 | 2.76 | 12 |
| 3 | 11/24/2025 | 05:45:50 | 69.67, 91.36 | 90.17 | 11/24/2025 | 05:44:41 | 69.69, 89.83 | 90.19 | 59.45 | 69 |
| 4 | 11/26/2025 | 20:21:35 | 70.36,-128.56 | 91.36 | 11/26/2025 | 20:22:06 | 70.37,-128.62 | 91.36 | 2.31 | 31 |
| 5 | 11/26/2025 | 21:12:17 | -70.30, 38.86 | 88.71 | 11/26/2025 | 21:11:35 | -70.31, 38.93 | 88.69 | 3.10 | 42 |
| 6 | 11/29/2025 | 11:47:55 | -70.67, 179.39 | 87.87 | 11/29/2025 | 11:49:06 | -70.58, 179.92 | 87.97 | 22.12 | 71 |
| 7 | 11/29/2025 | 12:38:36 | 70.37, -12.82 | 91.83 | 11/29/2025 | 12:38:35 | 70.37, -12.75 | 91.83 | 2.62 | 1 |
| 8 | 11/29/2025 | 13:29:17 | -70.25, 154.69 | 88.29 | 11/29/2025 | 13:28:05 | -70.26, 154.72 | 88.28 | 1.37 | 72 |
| 9 | 12/02/2025 | 04:04:52 | -70.42, -64.45 | 87.70 | 12/02/2025 | 04:05:38 | -70.44, -64.41 | 87.69 | 2.66 | 46 |
| 10 | 12/02/2025 | 04:55:36 | 70.28, 103.08 | 92.16 | 12/02/2025 | 04:55:06 | 70.28, 103.00 | 92.16 | 2.92 | 30 |
| 11 | 12/04/2025 | 19:31:22 | 71.04,-117.03 | 93.29 | 12/04/2025 | 19:32:30 | 70.93,-115.42 | 93.17 | 59.66 | 68 |
| 12 | 12/04/2025 | 20:21:53 | -70.39, 51.36 | 87.37 | 12/04/2025 | 20:22:08 | -70.39, 51.40 | 87.37 | 1.49 | 15 |
| 13 | 12/04/2025 | 21:12:37 | 70.25,-141.11 | 92.50 | 12/04/2025 | 21:11:35 | 70.28,-141.12 | 92.53 | 3.03 | 62 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/23/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 11/23/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9