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: 9/7/2025
| 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 | 09/07/2025 | 21:10:37 | -70.35, 38.90 | 115.46 | 09/07/2025 | 21:11:26 | -70.33, 38.98 | 115.47 | 3.27 | 49 |
| 2 | 09/07/2025 | 22:01:20 | 70.18,-153.53 | 64.39 | 09/07/2025 | 22:00:54 | 70.18,-153.60 | 64.40 | 2.70 | 26 |
| 3 | 09/07/2025 | 22:51:45 | -69.18, 15.25 | 116.62 | 09/07/2025 | 22:50:39 | -69.24, 12.74 | 116.51 | 99.32 | 66 |
| 4 | 09/10/2025 | 12:37:07 | 71.09, -13.89 | 66.31 | 09/10/2025 | 12:38:14 | 71.03, -11.73 | 66.21 | 78.28 | 67 |
| 5 | 09/10/2025 | 13:27:35 | -70.26, 154.80 | 114.54 | 09/10/2025 | 13:27:56 | -70.26, 154.74 | 114.54 | 1.97 | 21 |
| 6 | 09/10/2025 | 14:18:19 | 70.14, -37.72 | 65.36 | 09/10/2025 | 14:17:23 | 70.15, -37.76 | 65.38 | 1.76 | 56 |
| 7 | 09/13/2025 | 04:53:53 | 70.33, 103.12 | 66.55 | 09/13/2025 | 04:54:56 | 70.31, 103.08 | 66.52 | 2.59 | 63 |
| 8 | 09/13/2025 | 05:44:35 | -70.22, -89.40 | 113.56 | 09/13/2025 | 05:44:26 | -70.20, -89.45 | 113.58 | 3.08 | 9 |
| 9 | 09/13/2025 | 06:35:10 | 69.64, 78.79 | 65.87 | 09/13/2025 | 06:34:00 | 69.71, 77.51 | 65.96 | 50.26 | 70 |
| 10 | 09/15/2025 | 21:10:52 | 70.26,-141.01 | 67.50 | 09/15/2025 | 21:11:25 | 70.28,-141.08 | 67.52 | 3.39 | 33 |
| 11 | 09/15/2025 | 22:01:35 | -70.20, 26.40 | 112.55 | 09/15/2025 | 22:00:55 | -70.17, 26.40 | 112.58 | 2.89 | 40 |
| 12 | 09/18/2025 | 12:37:13 | -70.60, 166.89 | 111.14 | 09/18/2025 | 12:38:24 | -70.50, 167.48 | 111.26 | 24.84 | 71 |
| 13 | 09/18/2025 | 13:27:52 | 70.25, -25.24 | 68.52 | 09/18/2025 | 13:27:53 | 70.28, -25.20 | 68.54 | 3.08 | 1 |
| 14 | 09/18/2025 | 14:18:34 | -70.13, 142.26 | 111.59 | 09/18/2025 | 14:17:24 | -70.12, 142.20 | 111.61 | 2.92 | 70 |
| 15 | 09/21/2025 | 04:54:07 | -70.33, -76.92 | 110.38 | 09/21/2025 | 04:54:53 | -70.36, -76.84 | 110.36 | 3.67 | 46 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/7/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 09/07/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9