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: 9/13/2025
| 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 | 09/15/2025 | 21:35:12 | -74.33, 24.46 | 108.15 | 09/15/2025 | 21:35:46 | -74.33, 24.55 | 108.16 | 2.64 | 34 |
| 2 | 09/15/2025 | 22:25:56 | 74.24,-167.99 | 71.77 | 09/15/2025 | 22:25:05 | 74.24,-167.99 | 71.77 | 0.34 | 51 |
| 3 | 09/18/2025 | 07:56:52 | 74.33, 49.06 | 72.78 | 09/18/2025 | 07:57:17 | 74.33, 49.12 | 72.77 | 1.91 | 25 |
| 4 | 09/18/2025 | 08:47:34 | -74.24,-143.39 | 107.32 | 09/18/2025 | 08:46:40 | -74.23,-143.45 | 107.31 | 1.99 | 54 |
| 5 | 09/20/2025 | 18:18:30 | -74.33, 73.65 | 106.29 | 09/20/2025 | 18:18:52 | -74.32, 73.64 | 106.31 | 1.57 | 22 |
| 6 | 09/20/2025 | 19:09:14 | 74.23,-118.80 | 73.62 | 09/20/2025 | 19:08:10 | 74.27,-118.80 | 73.66 | 3.41 | 64 |
| 7 | 09/23/2025 | 04:40:10 | 74.33, 98.23 | 74.65 | 09/23/2025 | 04:40:22 | 74.34, 98.26 | 74.65 | 1.02 | 12 |
| 8 | 09/23/2025 | 05:30:52 | -74.24, -94.22 | 105.45 | 09/23/2025 | 05:29:45 | -74.24, -94.30 | 105.43 | 2.57 | 67 |
| 9 | 09/25/2025 | 14:11:18 | 75.01, -46.35 | 76.33 | 09/25/2025 | 14:12:24 | 74.91, -43.47 | 76.09 | 83.65 | 66 |
| 10 | 09/25/2025 | 15:01:48 | -74.34, 122.80 | 104.41 | 09/25/2025 | 15:01:56 | -74.35, 122.84 | 104.41 | 1.70 | 8 |
Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 9/13/2025
Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 09/13/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and TERRA