Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NPP and GCOM-C Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/22/2025
| Index | Date (NPP) | Time (NPP) | Lat,Lon (NPP) | SZA (NPP ) | Date (GCOM-C) | Time (GCOM-C) | Lat,Lon (GCOM-C) | SZA (GCOM-C ) | Distance(km) | Time Diff (sec) |
| 1 | 09/23/2025 | 08:29:40 | 69.66, 50.18 | 69.78 | 09/23/2025 | 08:30:48 | 69.58, 51.98 | 69.71 | 70.36 | 68 |
| 2 | 09/23/2025 | 09:20:14 | -69.13,-141.74 | 110.75 | 09/23/2025 | 09:21:27 | -69.09,-141.33 | 110.78 | 16.54 | 73 |
| 3 | 09/23/2025 | 10:10:56 | 68.91, 25.86 | 69.06 | 09/23/2025 | 10:11:57 | 68.94, 25.84 | 69.09 | 3.08 | 61 |
| 4 | 09/23/2025 | 11:01:40 | -68.91,-166.82 | 110.94 | 09/23/2025 | 11:02:27 | -68.93,-166.79 | 110.91 | 2.76 | 47 |
| 5 | 09/23/2025 | 11:52:26 | 68.91, 0.49 | 69.08 | 09/23/2025 | 11:52:55 | 68.89, 0.54 | 69.06 | 3.31 | 29 |
| 6 | 09/23/2025 | 12:43:09 | -68.86, 167.88 | 110.96 | 09/23/2025 | 12:43:25 | -68.88, 167.90 | 110.94 | 2.86 | 16 |
| 7 | 09/23/2025 | 13:33:55 | 68.86, -24.81 | 69.06 | 09/23/2025 | 13:33:53 | 68.83, -24.77 | 69.03 | 2.96 | 2 |
| 8 | 09/23/2025 | 14:24:38 | -68.80, 142.58 | 110.99 | 09/23/2025 | 14:24:23 | -68.83, 142.60 | 110.96 | 3.01 | 15 |
| 9 | 09/23/2025 | 15:15:24 | 68.80, -50.11 | 69.03 | 09/23/2025 | 15:14:51 | 68.78, -50.08 | 69.01 | 2.63 | 33 |
| 10 | 09/23/2025 | 16:06:07 | -68.75, 117.28 | 111.02 | 09/23/2025 | 16:05:21 | -68.78, 117.29 | 110.99 | 3.19 | 46 |
| 11 | 09/23/2025 | 16:56:53 | 68.75, -75.41 | 69.00 | 09/23/2025 | 16:55:49 | 68.73, -75.39 | 68.98 | 2.33 | 64 |
| 12 | 09/23/2025 | 17:47:35 | -68.64, 92.05 | 111.10 | 09/23/2025 | 17:46:21 | -68.62, 91.84 | 111.12 | 8.90 | 74 |
| 13 | 09/23/2025 | 18:38:09 | 67.99, -99.81 | 68.28 | 09/23/2025 | 18:37:00 | 67.97,-101.60 | 68.25 | 74.67 | 69 |
| 14 | 10/06/2025 | 06:54:51 | -69.70,-106.13 | 105.17 | 10/06/2025 | 06:56:00 | -69.64,-104.19 | 105.21 | 75.40 | 69 |
| 15 | 10/06/2025 | 07:45:25 | 69.09, 62.06 | 74.24 | 10/06/2025 | 07:46:38 | 69.05, 62.37 | 74.20 | 12.97 | 73 |
| 16 | 10/06/2025 | 08:36:07 | -68.96,-130.45 | 105.88 | 10/06/2025 | 08:37:10 | -68.94,-130.40 | 105.89 | 2.65 | 63 |
| 17 | 10/06/2025 | 09:26:51 | 68.87, 36.98 | 74.05 | 10/06/2025 | 09:27:38 | 68.88, 36.91 | 74.07 | 3.08 | 47 |
| 18 | 10/06/2025 | 10:17:36 | -68.91,-155.75 | 105.91 | 10/06/2025 | 10:18:08 | -68.89,-155.71 | 105.92 | 2.51 | 32 |
| 19 | 10/06/2025 | 11:08:21 | 68.87, 11.61 | 74.08 | 10/06/2025 | 11:08:35 | 68.88, 11.67 | 74.09 | 2.94 | 14 |
| 20 | 10/06/2025 | 11:59:05 | -68.85, 178.95 | 105.93 | 10/06/2025 | 11:59:06 | -68.83, 178.98 | 105.95 | 2.44 | 1 |
| 21 | 10/06/2025 | 12:49:50 | 68.82, -13.70 | 74.05 | 10/06/2025 | 12:49:33 | 68.83, -13.64 | 74.06 | 2.60 | 17 |
| 22 | 10/06/2025 | 13:40:34 | -68.80, 153.65 | 105.96 | 10/06/2025 | 13:40:04 | -68.78, 153.67 | 105.98 | 2.42 | 30 |
| 23 | 10/06/2025 | 14:31:19 | 68.77, -39.00 | 74.03 | 10/06/2025 | 14:30:31 | 68.78, -38.95 | 74.04 | 2.28 | 48 |
| 24 | 10/06/2025 | 15:22:03 | -68.75, 128.34 | 105.98 | 10/06/2025 | 15:21:02 | -68.73, 128.36 | 106.01 | 2.44 | 61 |
| 25 | 10/06/2025 | 16:12:45 | 68.55, -64.09 | 73.84 | 10/06/2025 | 16:11:32 | 68.56, -64.47 | 73.84 | 15.58 | 73 |
| 26 | 10/06/2025 | 17:03:21 | -68.10, 103.81 | 106.59 | 10/06/2025 | 17:02:11 | -68.08, 102.29 | 106.64 | 63.07 | 70 |
Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 9/22/2025
Download SNOs between NPP and GCOM-C since TLE EPOCH: 09/22/2025 in txt file.
Historial Predications of SNOs between NPP and GCOM-C