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: 8/27/2025
| 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 | 08/28/2025 | 11:39:03 | 69.48, 3.00 | 59.87 | 08/28/2025 | 11:40:13 | 69.44, 4.31 | 59.81 | 51.62 | 70 |
| 2 | 08/28/2025 | 12:29:38 | -69.03, 170.95 | 120.58 | 08/28/2025 | 12:30:51 | -69.01, 171.09 | 120.61 | 6.06 | 73 |
| 3 | 08/28/2025 | 13:20:23 | 68.94, -21.62 | 59.34 | 08/28/2025 | 13:21:19 | 68.96, -21.59 | 59.36 | 2.12 | 56 |
| 4 | 08/28/2025 | 14:11:06 | -68.92, 145.73 | 120.67 | 08/28/2025 | 14:11:50 | -68.90, 145.71 | 120.69 | 1.74 | 44 |
| 5 | 08/28/2025 | 15:01:52 | 68.88, -46.92 | 59.31 | 08/28/2025 | 15:02:17 | 68.91, -46.90 | 59.33 | 2.62 | 25 |
| 6 | 08/28/2025 | 15:52:35 | -68.86, 120.43 | 120.70 | 08/28/2025 | 15:52:48 | -68.85, 120.41 | 120.71 | 1.20 | 13 |
| 7 | 08/28/2025 | 16:43:21 | 68.83, -72.22 | 59.28 | 08/28/2025 | 16:43:15 | 68.86, -72.20 | 59.31 | 3.25 | 6 |
| 8 | 08/28/2025 | 17:34:04 | -68.80, 95.13 | 120.74 | 08/28/2025 | 17:33:46 | -68.80, 95.11 | 120.74 | 1.07 | 18 |
| 9 | 08/28/2025 | 18:24:50 | 68.77, -97.52 | 59.25 | 08/28/2025 | 18:24:14 | 68.75, -97.58 | 59.23 | 3.18 | 36 |
| 10 | 08/28/2025 | 19:15:33 | -68.75, 69.83 | 120.77 | 08/28/2025 | 19:14:44 | -68.75, 69.80 | 120.76 | 1.46 | 49 |
| 11 | 08/28/2025 | 20:06:19 | 68.71,-122.81 | 59.21 | 08/28/2025 | 20:05:12 | 68.70,-122.88 | 59.20 | 2.95 | 67 |
| 12 | 08/28/2025 | 20:56:59 | -68.53, 44.75 | 120.97 | 08/28/2025 | 20:55:45 | -68.54, 44.29 | 120.95 | 18.86 | 74 |
| 13 | 08/28/2025 | 21:47:32 | 67.79,-147.01 | 58.31 | 08/28/2025 | 21:46:25 | 67.84,-149.22 | 58.38 | 92.88 | 67 |
| 14 | 09/10/2025 | 10:04:24 | -69.64,-153.53 | 115.22 | 09/10/2025 | 10:05:33 | -69.62,-151.71 | 115.25 | 70.57 | 69 |
| 15 | 09/10/2025 | 10:54:59 | 69.06, 14.61 | 64.21 | 09/10/2025 | 10:56:11 | 69.02, 14.84 | 64.16 | 10.17 | 72 |
| 16 | 09/10/2025 | 11:45:41 | -68.95,-177.92 | 115.90 | 09/10/2025 | 11:46:43 | -68.93,-177.92 | 115.92 | 3.07 | 62 |
| 17 | 09/10/2025 | 12:36:26 | 68.90, -10.54 | 64.07 | 09/10/2025 | 12:37:10 | 68.92, -10.54 | 64.09 | 2.06 | 44 |
| 18 | 09/10/2025 | 13:27:10 | -68.90, 156.78 | 115.92 | 09/10/2025 | 13:27:41 | -68.87, 156.78 | 115.95 | 2.52 | 31 |
| 19 | 09/10/2025 | 14:17:55 | 68.84, -35.84 | 64.04 | 09/10/2025 | 14:18:08 | 68.87, -35.84 | 64.06 | 2.59 | 13 |
| 20 | 09/10/2025 | 15:08:39 | -68.84, 131.48 | 115.95 | 09/10/2025 | 15:08:39 | -68.82, 131.47 | 115.97 | 2.01 | 0 |
| 21 | 09/10/2025 | 15:59:24 | 68.79, -61.14 | 64.01 | 09/10/2025 | 15:59:06 | 68.82, -61.15 | 64.04 | 3.14 | 18 |
| 22 | 09/10/2025 | 16:50:08 | -68.79, 106.18 | 115.98 | 09/10/2025 | 16:49:37 | -68.77, 106.17 | 116.00 | 1.56 | 31 |
| 23 | 09/10/2025 | 17:40:54 | 68.78, -86.51 | 64.03 | 09/10/2025 | 17:40:04 | 68.76, -86.46 | 64.01 | 3.17 | 50 |
| 24 | 09/10/2025 | 18:31:37 | -68.73, 80.88 | 116.01 | 09/10/2025 | 18:30:35 | -68.72, 80.86 | 116.02 | 1.22 | 62 |
| 25 | 09/10/2025 | 19:22:19 | 68.51,-111.52 | 63.79 | 09/10/2025 | 19:21:06 | 68.50,-112.05 | 63.77 | 21.38 | 73 |
| 26 | 09/10/2025 | 20:12:54 | -68.03, 56.42 | 116.69 | 09/10/2025 | 20:11:45 | -68.02, 54.73 | 116.69 | 70.29 | 69 |
Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 8/27/2025
Download SNOs between NPP and GCOM-C since TLE EPOCH: 08/27/2025 in txt file.
Historial Predications of SNOs between NPP and GCOM-C