Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/10/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (TERRA) | Time (TERRA) | Lat,Lon (TERRA) | SZA (TERRA ) | Distance(km) | Time Diff (sec) |
| 1 | 11/13/2025 | 02:51:40 | -74.61, -55.37 | 87.32 | 11/13/2025 | 02:52:35 | -74.59, -55.36 | 87.35 | 2.48 | 55 |
| 2 | 11/13/2025 | 03:42:24 | 74.51, 112.22 | 92.59 | 11/13/2025 | 03:41:55 | 74.52, 112.15 | 92.60 | 2.35 | 29 |
| 3 | 11/15/2025 | 13:13:27 | 74.61, -30.79 | 93.32 | 11/15/2025 | 13:13:53 | 74.59, -30.73 | 93.29 | 2.62 | 26 |
| 4 | 11/15/2025 | 14:04:09 | -74.51, 136.79 | 86.79 | 11/15/2025 | 14:03:14 | -74.50, 136.71 | 86.79 | 2.84 | 55 |
| 5 | 11/17/2025 | 22:44:37 | 75.05,-174.78 | 94.39 | 11/17/2025 | 22:45:45 | 74.94,-172.93 | 94.20 | 54.50 | 68 |
| 6 | 11/17/2025 | 23:35:11 | -74.56, -6.10 | 86.14 | 11/17/2025 | 23:35:11 | -74.59, -6.12 | 86.11 | 3.28 | 0 |
| 7 | 11/18/2025 | 00:25:47 | 74.08, 162.46 | 93.35 | 11/18/2025 | 00:24:38 | 74.15, 160.54 | 93.50 | 58.90 | 69 |
| 8 | 11/20/2025 | 09:06:13 | -74.62,-149.01 | 85.52 | 11/20/2025 | 09:07:08 | -74.65,-149.01 | 85.50 | 3.79 | 55 |
| 9 | 11/20/2025 | 09:56:58 | 74.58, 18.40 | 94.46 | 11/20/2025 | 09:56:28 | 74.57, 18.47 | 94.44 | 2.45 | 30 |
| 10 | 11/22/2025 | 19:27:59 | 74.61,-124.41 | 95.01 | 11/22/2025 | 19:28:25 | 74.60,-124.51 | 95.00 | 2.92 | 26 |
Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 11/10/2025
Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 11/10/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and TERRA