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: 9/9/2025
| 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 | 09/10/2025 | 10:04:24 | -69.66,-153.55 | 115.20 | 09/10/2025 | 10:05:33 | -69.58,-151.76 | 115.29 | 70.06 | 69 |
| 2 | 09/10/2025 | 10:54:58 | 69.01, 14.68 | 64.16 | 09/10/2025 | 10:56:11 | 69.00, 14.81 | 64.14 | 5.29 | 73 |
| 3 | 09/10/2025 | 11:45:40 | -68.92,-177.87 | 115.93 | 09/10/2025 | 11:46:42 | -68.95,-177.89 | 115.90 | 3.13 | 62 |
| 4 | 09/10/2025 | 12:36:26 | 68.90, -10.54 | 64.07 | 09/10/2025 | 12:37:10 | 68.90, -10.57 | 64.06 | 1.27 | 44 |
| 5 | 09/10/2025 | 13:27:10 | -68.92, 156.76 | 115.91 | 09/10/2025 | 13:27:40 | -68.89, 156.80 | 115.93 | 3.04 | 30 |
| 6 | 09/10/2025 | 14:17:55 | 68.85, -35.84 | 64.04 | 09/10/2025 | 14:18:08 | 68.84, -35.88 | 64.04 | 1.37 | 13 |
| 7 | 09/10/2025 | 15:08:39 | -68.86, 131.46 | 115.94 | 09/10/2025 | 15:08:38 | -68.84, 131.50 | 115.95 | 2.48 | 1 |
| 8 | 09/10/2025 | 15:59:24 | 68.79, -61.14 | 64.01 | 09/10/2025 | 15:59:06 | 68.79, -61.18 | 64.02 | 1.64 | 18 |
| 9 | 09/10/2025 | 16:50:08 | -68.80, 106.16 | 115.96 | 09/10/2025 | 16:49:36 | -68.79, 106.19 | 115.98 | 1.95 | 32 |
| 10 | 09/10/2025 | 17:40:53 | 68.74, -86.44 | 63.98 | 09/10/2025 | 17:40:04 | 68.74, -86.49 | 63.99 | 2.01 | 49 |
| 11 | 09/10/2025 | 18:31:37 | -68.75, 80.86 | 115.99 | 09/10/2025 | 18:30:34 | -68.74, 80.89 | 116.00 | 1.44 | 63 |
| 12 | 09/10/2025 | 19:22:18 | 68.47,-111.46 | 63.74 | 09/10/2025 | 19:21:06 | 68.47,-112.08 | 63.75 | 25.34 | 72 |
| 13 | 09/10/2025 | 20:12:54 | -68.05, 56.40 | 116.67 | 09/10/2025 | 20:11:44 | -68.04, 54.75 | 116.67 | 68.43 | 70 |
| 14 | 09/23/2025 | 08:29:40 | 69.63, 50.22 | 69.75 | 09/23/2025 | 08:30:49 | 69.56, 51.95 | 69.69 | 67.72 | 69 |
| 15 | 09/23/2025 | 09:20:15 | -69.14,-141.76 | 110.74 | 09/23/2025 | 09:21:28 | -69.08,-141.35 | 110.79 | 17.49 | 73 |
| 16 | 09/23/2025 | 10:10:57 | 68.94, 25.83 | 69.08 | 09/23/2025 | 10:11:58 | 68.92, 25.82 | 69.06 | 2.70 | 61 |
| 17 | 09/23/2025 | 11:01:41 | -68.92,-166.84 | 110.92 | 09/23/2025 | 11:02:28 | -68.92,-166.80 | 110.92 | 1.45 | 47 |
| 18 | 09/23/2025 | 11:52:26 | 68.88, 0.53 | 69.06 | 09/23/2025 | 11:52:56 | 68.86, 0.51 | 69.03 | 2.51 | 30 |
| 19 | 09/23/2025 | 12:43:10 | -68.87, 167.86 | 110.95 | 09/23/2025 | 12:43:26 | -68.87, 167.89 | 110.95 | 1.15 | 16 |
| 20 | 09/23/2025 | 13:33:55 | 68.83, -24.77 | 69.03 | 09/23/2025 | 13:33:54 | 68.81, -24.80 | 69.01 | 2.38 | 1 |
| 21 | 09/23/2025 | 14:24:39 | -68.81, 142.56 | 110.98 | 09/23/2025 | 14:24:24 | -68.82, 142.58 | 110.97 | 0.98 | 15 |
| 22 | 09/23/2025 | 15:15:24 | 68.77, -50.07 | 69.00 | 09/23/2025 | 15:14:52 | 68.76, -50.11 | 68.98 | 2.30 | 32 |
| 23 | 09/23/2025 | 16:06:08 | -68.76, 117.26 | 111.01 | 09/23/2025 | 16:05:22 | -68.77, 117.28 | 111.00 | 0.97 | 46 |
| 24 | 09/23/2025 | 16:56:53 | 68.72, -75.37 | 68.97 | 09/23/2025 | 16:55:50 | 68.70, -75.41 | 68.96 | 2.27 | 63 |
| 25 | 09/23/2025 | 17:47:36 | -68.65, 92.03 | 111.09 | 09/23/2025 | 17:46:21 | -68.66, 91.90 | 111.08 | 5.52 | 75 |
| 26 | 09/23/2025 | 18:38:09 | 67.96, -99.77 | 68.25 | 09/23/2025 | 18:37:00 | 68.00,-101.55 | 68.28 | 74.44 | 69 |
Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 9/9/2025
Download SNOs between NPP and GCOM-C since TLE EPOCH: 09/09/2025 in txt file.
Historial Predications of SNOs between NPP and GCOM-C