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: 10/6/2025
| 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 | 10/06/2025 | 06:54:50 | -69.65,-106.06 | 105.22 | 10/06/2025 | 06:55:59 | -69.61,-104.23 | 105.24 | 71.14 | 69 |
| 2 | 10/06/2025 | 07:45:25 | 69.08, 62.07 | 74.23 | 10/06/2025 | 07:46:37 | 69.03, 62.35 | 74.19 | 12.11 | 72 |
| 3 | 10/06/2025 | 08:36:06 | -68.91,-130.38 | 105.93 | 10/06/2025 | 08:37:09 | -68.91,-130.44 | 105.93 | 2.23 | 63 |
| 4 | 10/06/2025 | 09:26:52 | 68.92, 36.92 | 74.10 | 10/06/2025 | 09:27:36 | 68.92, 36.96 | 74.10 | 1.66 | 44 |
| 5 | 10/06/2025 | 10:17:35 | -68.86,-155.68 | 105.95 | 10/06/2025 | 10:18:07 | -68.86,-155.75 | 105.95 | 2.60 | 32 |
| 6 | 10/06/2025 | 11:08:21 | 68.86, 11.62 | 74.07 | 10/06/2025 | 11:08:34 | 68.86, 11.65 | 74.07 | 1.27 | 13 |
| 7 | 10/06/2025 | 11:59:05 | -68.86, 178.94 | 105.93 | 10/06/2025 | 11:59:04 | -68.86, 179.01 | 105.93 | 2.89 | 1 |
| 8 | 10/06/2025 | 12:49:50 | 68.81, -13.69 | 74.05 | 10/06/2025 | 12:49:32 | 68.81, -13.66 | 74.04 | 0.95 | 18 |
| 9 | 10/06/2025 | 13:40:34 | -68.81, 153.64 | 105.95 | 10/06/2025 | 13:40:02 | -68.80, 153.70 | 105.96 | 2.62 | 32 |
| 10 | 10/06/2025 | 14:31:19 | 68.76, -38.99 | 74.02 | 10/06/2025 | 14:30:30 | 68.75, -38.97 | 74.01 | 0.77 | 49 |
| 11 | 10/06/2025 | 15:22:03 | -68.75, 128.34 | 105.98 | 10/06/2025 | 15:21:00 | -68.74, 128.39 | 105.99 | 2.40 | 63 |
| 12 | 10/06/2025 | 16:12:44 | 68.49, -64.01 | 73.78 | 10/06/2025 | 16:11:31 | 68.54, -64.50 | 73.82 | 20.64 | 73 |
| 13 | 10/06/2025 | 17:03:20 | -68.06, 103.87 | 106.63 | 10/06/2025 | 17:02:10 | -68.04, 102.25 | 106.67 | 67.31 | 70 |
| 14 | 10/19/2025 | 05:19:54 | 69.52, 97.90 | 79.49 | 10/19/2025 | 05:21:03 | 69.46, 99.36 | 79.45 | 57.07 | 69 |
| 15 | 10/19/2025 | 06:10:29 | -69.03, -94.08 | 100.99 | 10/19/2025 | 06:11:42 | -68.98, -93.94 | 101.03 | 8.18 | 73 |
| 16 | 10/19/2025 | 07:01:13 | 68.94, 73.36 | 78.94 | 10/19/2025 | 07:02:10 | 68.92, 73.37 | 78.92 | 2.52 | 57 |
| 17 | 10/19/2025 | 07:51:57 | -68.92,-119.31 | 101.07 | 10/19/2025 | 07:52:40 | -68.92,-119.25 | 101.07 | 2.39 | 43 |
| 18 | 10/19/2025 | 08:42:42 | 68.89, 48.05 | 78.92 | 10/19/2025 | 08:43:08 | 68.86, 48.06 | 78.89 | 3.05 | 26 |
| 19 | 10/19/2025 | 09:33:26 | -68.87,-144.61 | 101.09 | 10/19/2025 | 09:33:38 | -68.86,-144.56 | 101.10 | 2.26 | 12 |
| 20 | 10/19/2025 | 10:24:11 | 68.83, 22.75 | 78.89 | 10/19/2025 | 10:24:05 | 68.86, 22.82 | 78.91 | 3.58 | 6 |
| 21 | 10/19/2025 | 11:14:55 | -68.82,-169.92 | 101.12 | 10/19/2025 | 11:14:36 | -68.80,-169.88 | 101.13 | 2.36 | 19 |
| 22 | 10/19/2025 | 12:05:40 | 68.78, -2.56 | 78.86 | 10/19/2025 | 12:05:03 | 68.80, -2.50 | 78.88 | 2.91 | 37 |
| 23 | 10/19/2025 | 12:56:24 | -68.77, 164.78 | 101.14 | 10/19/2025 | 12:55:34 | -68.75, 164.81 | 101.17 | 2.66 | 50 |
| 24 | 10/19/2025 | 13:47:09 | 68.73, -27.86 | 78.84 | 10/19/2025 | 13:46:01 | 68.74, -27.81 | 78.85 | 2.29 | 68 |
| 25 | 10/19/2025 | 14:37:49 | -68.50, 139.76 | 101.38 | 10/19/2025 | 14:36:36 | -68.48, 139.21 | 101.42 | 22.36 | 73 |
| 26 | 10/19/2025 | 15:28:22 | 67.82, -52.06 | 77.97 | 10/19/2025 | 15:27:15 | 67.82, -54.23 | 77.93 | 91.08 | 67 |
Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/6/2025
Download SNOs between NPP and GCOM-C since TLE EPOCH: 10/06/2025 in txt file.
Historial Predications of SNOs between NPP and GCOM-C