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: 11/21/2025
| 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 | 11/21/2025 | 11:47:45 | 71.08, -1.25 | 91.00 | 11/21/2025 | 11:48:53 | 70.97, 0.54 | 90.89 | 66.17 | 68 |
| 2 | 11/21/2025 | 12:38:15 | -70.38, 167.22 | 89.70 | 11/21/2025 | 12:38:32 | -70.36, 167.26 | 89.72 | 2.80 | 17 |
| 3 | 11/21/2025 | 13:28:59 | 70.24, -25.25 | 90.17 | 11/21/2025 | 13:27:59 | 70.26, -25.24 | 90.19 | 2.44 | 60 |
| 4 | 11/24/2025 | 04:04:35 | 70.44, 115.55 | 90.92 | 11/24/2025 | 04:05:29 | 70.43, 115.62 | 90.91 | 2.95 | 54 |
| 5 | 11/24/2025 | 04:55:15 | -70.32, -76.93 | 89.20 | 11/24/2025 | 04:54:58 | -70.32, -76.91 | 89.20 | 1.02 | 17 |
| 6 | 11/24/2025 | 05:45:45 | 69.44, 91.71 | 89.93 | 11/24/2025 | 05:44:38 | 69.49, 89.58 | 89.98 | 83.34 | 67 |
| 7 | 11/26/2025 | 19:31:07 | -71.37, 62.45 | 87.64 | 11/26/2025 | 19:32:13 | -71.28, 65.18 | 87.73 | 97.41 | 66 |
| 8 | 11/26/2025 | 20:21:34 | 70.34,-128.52 | 91.33 | 11/26/2025 | 20:21:55 | 70.35,-128.60 | 91.35 | 3.35 | 21 |
| 9 | 11/26/2025 | 21:12:16 | -70.27, 38.91 | 88.74 | 11/26/2025 | 21:11:25 | -70.24, 38.88 | 88.76 | 2.98 | 51 |
| 10 | 11/29/2025 | 11:47:51 | -70.43, 179.78 | 88.11 | 11/29/2025 | 11:48:54 | -70.42, 179.75 | 88.13 | 1.69 | 63 |
| 11 | 11/29/2025 | 12:38:35 | 70.29, -12.69 | 91.75 | 11/29/2025 | 12:38:21 | 70.31, -12.77 | 91.77 | 3.52 | 14 |
| 12 | 11/29/2025 | 13:29:08 | -69.75, 155.46 | 88.79 | 11/29/2025 | 13:27:58 | -69.82, 154.17 | 88.72 | 50.35 | 70 |
| 13 | 12/02/2025 | 04:04:52 | -70.39, -64.40 | 87.74 | 12/02/2025 | 04:05:19 | -70.41, -64.37 | 87.72 | 2.21 | 27 |
| 14 | 12/02/2025 | 04:55:37 | 70.30, 103.05 | 92.18 | 12/02/2025 | 04:54:46 | 70.29, 103.11 | 92.17 | 2.51 | 51 |
| 15 | 12/04/2025 | 19:31:11 | 70.43,-116.02 | 92.67 | 12/04/2025 | 19:32:15 | 70.42,-116.08 | 92.66 | 2.44 | 64 |
| 16 | 12/04/2025 | 20:21:53 | -70.35, 51.42 | 87.41 | 12/04/2025 | 20:21:44 | -70.37, 51.47 | 87.39 | 2.79 | 9 |
| 17 | 12/04/2025 | 21:12:28 | 69.79,-140.41 | 92.04 | 12/04/2025 | 21:11:18 | 69.81,-141.67 | 92.06 | 48.37 | 70 |
Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/21/2025
Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 11/21/2025 in txt file.
Historial Predications of SNOs between NPP and LANDSAT-9