Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between FY3D and NPP Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/21/2026
| Index | Date (FY3D) | Time (FY3D) | Lat,Lon (FY3D) | SZA (FY3D ) | Date (NPP) | Time (NPP) | Lat,Lon (NPP) | SZA (NPP ) | Distance(km) | Time Diff (sec) |
| 1 | 10/21/2026 | 05:51:10 | 80.65, 47.25 | 93.57 | 10/21/2026 | 05:52:14 | 80.64, 47.38 | 93.52 | 2.66 | 64 |
| 2 | 10/21/2026 | 06:41:55 | -80.65,-145.38 | 86.42 | 10/21/2026 | 06:43:00 | -80.65,-145.54 | 86.43 | 2.81 | 65 |
| 3 | 10/21/2026 | 07:32:39 | 80.65, 21.86 | 93.60 | 10/21/2026 | 07:33:44 | 80.64, 21.98 | 93.55 | 2.34 | 65 |
| 4 | 10/21/2026 | 08:23:24 | -80.65,-170.77 | 86.40 | 10/21/2026 | 08:24:30 | -80.65,-170.94 | 86.41 | 3.10 | 66 |
| 5 | 10/21/2026 | 09:14:08 | 80.64, -3.52 | 93.63 | 10/21/2026 | 09:15:14 | 80.64, -3.41 | 93.58 | 2.03 | 66 |
| 6 | 10/21/2026 | 10:04:53 | -80.65, 163.85 | 86.37 | 10/21/2026 | 10:05:59 | -80.63, 164.01 | 86.43 | 3.27 | 66 |
| 7 | 10/21/2026 | 10:55:37 | 80.64, -28.91 | 93.65 | 10/21/2026 | 10:56:44 | 80.64, -28.81 | 93.61 | 1.73 | 67 |
| 8 | 10/21/2026 | 11:46:22 | -80.65, 138.47 | 86.35 | 10/21/2026 | 11:47:29 | -80.63, 138.61 | 86.40 | 2.92 | 67 |
| 9 | 10/21/2026 | 12:37:06 | 80.64, -54.29 | 93.68 | 10/21/2026 | 12:38:14 | 80.64, -54.21 | 93.64 | 1.45 | 68 |
| 10 | 10/21/2026 | 13:27:51 | -80.65, 113.09 | 86.32 | 10/21/2026 | 13:28:59 | -80.64, 113.21 | 86.37 | 2.58 | 68 |
| 11 | 10/21/2026 | 14:18:35 | 80.64, -79.67 | 93.70 | 10/21/2026 | 14:19:44 | 80.64, -79.61 | 93.67 | 1.22 | 69 |
| 12 | 10/21/2026 | 15:09:20 | -80.65, 87.70 | 86.30 | 10/21/2026 | 15:10:29 | -80.64, 87.82 | 86.34 | 2.24 | 69 |
| 13 | 10/21/2026 | 16:00:04 | 80.64,-105.06 | 93.73 | 10/21/2026 | 16:01:14 | 80.65,-105.00 | 93.69 | 1.04 | 70 |
| 14 | 10/21/2026 | 16:50:49 | -80.64, 62.32 | 86.27 | 10/21/2026 | 16:51:59 | -80.64, 62.42 | 86.32 | 1.90 | 70 |
| 15 | 10/21/2026 | 17:41:33 | 80.64,-130.44 | 93.75 | 10/21/2026 | 17:42:44 | 80.65,-130.40 | 93.72 | 0.96 | 71 |
| 16 | 10/21/2026 | 18:32:18 | -80.64, 36.94 | 86.25 | 10/21/2026 | 18:33:29 | -80.64, 37.02 | 86.29 | 1.58 | 71 |
| 17 | 10/21/2026 | 19:23:02 | 80.64,-155.83 | 93.78 | 10/21/2026 | 19:24:14 | 80.65,-155.80 | 93.75 | 1.01 | 72 |
| 18 | 10/21/2026 | 20:13:47 | -80.64, 11.55 | 86.22 | 10/21/2026 | 20:14:59 | -80.64, 11.62 | 86.26 | 1.27 | 72 |
| 19 | 10/21/2026 | 21:04:31 | 80.64, 178.79 | 93.80 | 10/21/2026 | 21:05:44 | 80.65, 178.80 | 93.78 | 1.16 | 73 |
| 20 | 10/21/2026 | 21:55:16 | -80.64, -13.83 | 86.20 | 10/21/2026 | 21:56:29 | -80.64, -13.77 | 86.23 | 0.99 | 73 |
| 21 | 10/21/2026 | 22:46:00 | 80.64, 153.41 | 93.83 | 10/21/2026 | 22:47:14 | 80.65, 153.40 | 93.81 | 1.39 | 74 |
| 22 | 10/21/2026 | 23:36:45 | -80.64, -39.21 | 86.17 | 10/21/2026 | 23:37:59 | -80.64, -39.17 | 86.20 | 0.78 | 74 |
| 23 | 10/22/2026 | 00:27:29 | 80.64, 128.02 | 93.85 | 10/22/2026 | 00:28:44 | 80.65, 128.01 | 93.83 | 1.66 | 75 |
| 24 | 10/22/2026 | 01:18:14 | -80.64, -64.60 | 86.14 | 10/22/2026 | 01:19:29 | -80.65, -64.57 | 86.18 | 0.70 | 75 |
| 25 | 10/22/2026 | 02:09:01 | 80.59, 101.59 | 93.95 | 10/22/2026 | 02:10:11 | 80.59, 103.63 | 93.71 | 37.21 | 70 |
| 26 | 10/22/2026 | 02:59:45 | -80.61, -90.68 | 86.07 | 10/22/2026 | 03:00:57 | -80.61, -89.29 | 86.25 | 25.25 | 72 |
| 27 | 10/22/2026 | 04:41:20 | -80.50,-118.12 | 85.90 | 10/22/2026 | 04:42:22 | -80.50,-113.01 | 86.48 | 93.96 | 62 |
Figure of FY3D and NPP satellite orbits during SNOs since TLE Epoch: 10/21/2026
Download SNOs between FY3D and NPP since TLE EPOCH: 10/21/2026 in txt file.
Historial Predications of SNOs between FY3D and NPP