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: 11/13/2025
| 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 | 11/14/2025 | 04:42:09 | -69.62, -72.69 | 92.20 | 11/14/2025 | 04:43:18 | -69.56, -70.98 | 92.23 | 66.92 | 69 |
| 2 | 11/14/2025 | 05:32:43 | 68.96, 95.56 | 87.16 | 11/14/2025 | 05:33:56 | 68.97, 95.59 | 87.18 | 2.12 | 73 |
| 3 | 11/14/2025 | 06:23:26 | -68.94, -97.09 | 92.86 | 11/14/2025 | 06:24:27 | -68.92, -97.11 | 92.88 | 2.65 | 61 |
| 4 | 11/14/2025 | 07:14:12 | 68.91, 70.25 | 87.13 | 11/14/2025 | 07:14:54 | 68.92, 70.29 | 87.14 | 1.74 | 42 |
| 5 | 11/14/2025 | 08:04:54 | -68.89,-122.40 | 92.89 | 11/14/2025 | 08:05:24 | -68.86,-122.42 | 92.91 | 3.09 | 30 |
| 6 | 11/14/2025 | 08:55:40 | 68.86, 44.95 | 87.10 | 11/14/2025 | 08:55:51 | 68.87, 44.98 | 87.11 | 1.41 | 11 |
| 7 | 11/14/2025 | 09:46:23 | -68.84,-147.71 | 92.92 | 11/14/2025 | 09:46:21 | -68.86,-147.65 | 92.89 | 3.35 | 2 |
| 8 | 11/14/2025 | 10:37:09 | 68.81, 19.64 | 87.07 | 11/14/2025 | 10:36:49 | 68.81, 19.67 | 87.07 | 1.20 | 20 |
| 9 | 11/14/2025 | 11:27:52 | -68.79,-173.02 | 92.95 | 11/14/2025 | 11:27:19 | -68.81,-172.96 | 92.93 | 3.03 | 33 |
| 10 | 11/14/2025 | 12:18:38 | 68.76, -5.67 | 87.04 | 11/14/2025 | 12:17:47 | 68.76, -5.64 | 87.03 | 1.15 | 51 |
| 11 | 11/14/2025 | 13:09:21 | -68.74, 161.68 | 92.98 | 11/14/2025 | 13:08:17 | -68.76, 161.73 | 92.96 | 2.76 | 64 |
| 12 | 11/14/2025 | 14:00:02 | 68.45, -30.62 | 86.75 | 11/14/2025 | 13:58:50 | 68.44, -31.30 | 86.72 | 27.85 | 72 |
| 13 | 11/14/2025 | 14:50:37 | -68.00, 137.27 | 93.69 | 11/14/2025 | 14:49:28 | -68.00, 135.53 | 93.72 | 72.82 | 69 |
| 14 | 11/27/2025 | 03:57:44 | -69.65, -61.57 | 89.30 | 11/27/2025 | 03:58:53 | -69.60, -59.76 | 89.32 | 70.25 | 69 |
| 15 | 11/27/2025 | 04:48:19 | 69.04, 106.61 | 90.11 | 11/27/2025 | 04:49:31 | 69.01, 106.79 | 90.08 | 8.29 | 72 |
| 16 | 11/27/2025 | 05:39:01 | -68.97, -85.97 | 89.96 | 11/27/2025 | 05:40:02 | -68.96, -85.90 | 89.97 | 3.13 | 61 |
| 17 | 11/27/2025 | 06:29:46 | 68.89, 81.44 | 89.97 | 11/27/2025 | 06:30:30 | 68.90, 81.40 | 89.98 | 1.88 | 44 |
| 18 | 11/27/2025 | 07:20:30 | -68.93,-111.28 | 90.00 | 11/27/2025 | 07:21:00 | -68.91,-111.21 | 90.02 | 3.57 | 30 |
| 19 | 11/27/2025 | 08:11:15 | 68.84, 56.13 | 89.93 | 11/27/2025 | 08:11:28 | 68.84, 56.09 | 89.93 | 1.83 | 13 |
| 20 | 11/27/2025 | 09:01:58 | -68.83,-136.52 | 90.08 | 11/27/2025 | 09:01:58 | -68.85,-136.53 | 90.06 | 2.68 | 0 |
| 21 | 11/27/2025 | 09:52:44 | 68.80, 30.82 | 89.90 | 11/27/2025 | 09:52:26 | 68.79, 30.78 | 89.89 | 2.27 | 18 |
| 22 | 11/27/2025 | 10:43:27 | -68.78,-161.83 | 90.12 | 11/27/2025 | 10:42:56 | -68.79,-161.84 | 90.10 | 1.68 | 31 |
| 23 | 11/27/2025 | 11:34:13 | 68.75, 5.51 | 89.87 | 11/27/2025 | 11:33:24 | 68.73, 5.47 | 89.84 | 3.00 | 49 |
| 24 | 11/27/2025 | 12:24:56 | -68.73, 172.86 | 90.15 | 11/27/2025 | 12:23:54 | -68.74, 172.85 | 90.15 | 0.71 | 62 |
| 25 | 11/27/2025 | 13:15:38 | 68.49, -19.51 | 89.62 | 11/27/2025 | 13:14:25 | 68.51, -20.06 | 89.63 | 22.41 | 73 |
| 26 | 11/27/2025 | 14:06:13 | -68.04, 148.38 | 90.82 | 11/27/2025 | 14:05:03 | -68.09, 146.78 | 90.80 | 66.92 | 70 |
Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/13/2025
Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/13/2025 in txt file.
Historial Predications of SNOs between NPP and GCOM-C