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: 7/20/2025
| 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 | 07/20/2025 | 13:52:11 | 69.93, -31.06 | 49.37 | 07/20/2025 | 13:53:17 | 69.89, -28.52 | 49.26 | 97.19 | 66 |
| 2 | 07/20/2025 | 14:42:45 | -69.45, 136.98 | 131.14 | 07/20/2025 | 14:43:56 | -69.41, 138.16 | 131.22 | 46.30 | 71 |
| 3 | 07/20/2025 | 15:33:23 | 68.98, -55.06 | 48.39 | 07/20/2025 | 15:34:31 | 68.98, -55.05 | 48.38 | 0.46 | 68 |
| 4 | 07/20/2025 | 16:24:06 | -68.98, 112.27 | 131.61 | 07/20/2025 | 16:25:01 | -68.98, 112.32 | 131.62 | 2.16 | 55 |
| 5 | 07/20/2025 | 17:14:52 | 68.93, -80.36 | 48.35 | 07/20/2025 | 17:15:29 | 68.92, -80.36 | 48.34 | 1.05 | 37 |
| 6 | 07/20/2025 | 18:05:35 | -68.93, 86.96 | 131.65 | 07/20/2025 | 18:05:59 | -68.92, 87.01 | 131.66 | 2.13 | 24 |
| 7 | 07/20/2025 | 18:56:21 | 68.89,-105.67 | 48.31 | 07/20/2025 | 18:56:27 | 68.87,-105.67 | 48.30 | 1.73 | 6 |
| 8 | 07/20/2025 | 19:47:04 | -68.88, 61.65 | 131.69 | 07/20/2025 | 19:46:57 | -68.87, 61.70 | 131.70 | 2.34 | 7 |
| 9 | 07/20/2025 | 20:37:50 | 68.84,-130.98 | 48.28 | 07/20/2025 | 20:37:25 | 68.82,-130.98 | 48.26 | 2.43 | 25 |
| 10 | 07/20/2025 | 21:28:33 | -68.83, 36.35 | 131.72 | 07/20/2025 | 21:27:55 | -68.82, 36.39 | 131.74 | 2.72 | 38 |
| 11 | 07/20/2025 | 22:19:19 | 68.79,-156.29 | 48.24 | 07/20/2025 | 22:18:23 | 68.76,-156.29 | 48.22 | 3.13 | 56 |
| 12 | 07/20/2025 | 23:10:02 | -68.78, 11.04 | 131.76 | 07/20/2025 | 23:08:53 | -68.76, 11.08 | 131.78 | 3.21 | 69 |
| 13 | 07/21/2025 | 00:00:40 | 68.31, 178.97 | 47.76 | 07/20/2025 | 23:59:28 | 68.33, 177.91 | 47.81 | 43.73 | 72 |
| 14 | 07/21/2025 | 00:51:14 | -67.82, -13.10 | 132.73 | 07/21/2025 | 00:50:07 | -67.84, -15.33 | 132.65 | 93.59 | 67 |
| 15 | 08/02/2025 | 13:07:46 | 69.89, -19.84 | 52.25 | 08/02/2025 | 13:08:53 | 69.83, -17.43 | 52.13 | 92.48 | 67 |
| 16 | 08/02/2025 | 13:58:21 | -69.45, 148.13 | 128.21 | 08/02/2025 | 13:59:32 | -69.36, 149.26 | 128.33 | 45.53 | 71 |
| 17 | 08/02/2025 | 14:48:59 | 68.99, -43.92 | 51.33 | 08/02/2025 | 14:50:06 | 68.97, -43.89 | 51.30 | 2.49 | 67 |
| 18 | 08/02/2025 | 15:39:41 | -68.92, 123.49 | 128.74 | 08/02/2025 | 15:40:37 | -68.93, 123.43 | 128.73 | 2.57 | 56 |
| 19 | 08/02/2025 | 16:30:28 | 68.94, -69.23 | 51.30 | 08/02/2025 | 16:31:04 | 68.91, -69.20 | 51.27 | 3.17 | 36 |
| 20 | 08/02/2025 | 17:21:10 | -68.87, 98.18 | 128.77 | 08/02/2025 | 17:21:35 | -68.88, 98.12 | 128.76 | 2.40 | 25 |
| 21 | 08/02/2025 | 18:11:56 | 68.84, -94.47 | 51.21 | 08/02/2025 | 18:12:02 | 68.86, -94.51 | 51.23 | 2.84 | 6 |
| 22 | 08/02/2025 | 19:02:39 | -68.82, 72.87 | 128.80 | 08/02/2025 | 19:02:33 | -68.82, 72.81 | 128.80 | 2.49 | 6 |
| 23 | 08/02/2025 | 19:53:25 | 68.79,-119.78 | 51.18 | 08/02/2025 | 19:53:00 | 68.80,-119.82 | 51.20 | 2.33 | 25 |
| 24 | 08/02/2025 | 20:44:08 | -68.78, 47.56 | 128.83 | 08/02/2025 | 20:43:31 | -68.77, 47.50 | 128.84 | 2.81 | 37 |
| 25 | 08/02/2025 | 21:34:54 | 68.74,-145.09 | 51.15 | 08/02/2025 | 21:33:58 | 68.75,-145.14 | 51.16 | 2.04 | 56 |
| 26 | 08/02/2025 | 22:25:37 | -68.73, 22.25 | 128.86 | 08/02/2025 | 22:24:29 | -68.71, 22.19 | 128.87 | 3.29 | 68 |
| 27 | 08/02/2025 | 23:16:15 | 68.27,-169.83 | 50.68 | 08/02/2025 | 23:15:04 | 68.26,-171.01 | 50.71 | 48.44 | 71 |
| 28 | 08/03/2025 | 00:06:50 | -67.82, -1.95 | 129.77 | 08/03/2025 | 00:05:42 | -67.85, -4.15 | 129.69 | 92.19 | 68 |
Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 7/20/2025
Download SNOs between NPP and GCOM-C since TLE EPOCH: 07/20/2025 in txt file.
Historial Predications of SNOs between NPP and GCOM-C