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: 9/18/2025
| 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 | 09/20/2025 | 18:18:30 | -74.34, 73.63 | 106.29 | 09/20/2025 | 18:18:51 | -74.34, 73.69 | 106.29 | 1.94 | 21 |
| 2 | 09/20/2025 | 19:09:14 | 74.24,-118.81 | 73.62 | 09/20/2025 | 19:08:10 | 74.24,-118.85 | 73.64 | 1.57 | 64 |
| 3 | 09/23/2025 | 04:40:10 | 74.34, 98.22 | 74.65 | 09/23/2025 | 04:40:21 | 74.35, 98.29 | 74.66 | 2.75 | 11 |
| 4 | 09/23/2025 | 05:30:52 | -74.25, -94.24 | 105.44 | 09/23/2025 | 05:29:44 | -74.25, -94.29 | 105.42 | 1.34 | 68 |
| 5 | 09/25/2025 | 14:11:17 | 74.97, -46.23 | 76.28 | 09/25/2025 | 14:12:23 | 74.90, -43.49 | 76.08 | 79.50 | 66 |
| 6 | 09/25/2025 | 15:01:48 | -74.35, 122.77 | 104.40 | 09/25/2025 | 15:01:55 | -74.34, 122.82 | 104.42 | 2.35 | 7 |
| 7 | 09/25/2025 | 15:52:28 | 74.05, -69.17 | 75.29 | 09/25/2025 | 15:51:16 | 74.13, -69.97 | 75.42 | 25.73 | 72 |
| 8 | 09/28/2025 | 00:32:50 | -74.80, -21.15 | 102.98 | 09/28/2025 | 00:33:59 | -74.72, -19.39 | 103.15 | 52.29 | 69 |
| 9 | 09/28/2025 | 01:23:27 | 74.36, 147.34 | 76.55 | 09/28/2025 | 01:23:23 | 74.36, 147.45 | 76.55 | 3.50 | 4 |
| 10 | 09/28/2025 | 02:14:01 | -73.88, -44.15 | 103.97 | 09/28/2025 | 02:12:52 | -73.94, -45.82 | 103.81 | 51.83 | 69 |
| 11 | 09/30/2025 | 10:54:22 | 74.42, 4.45 | 77.54 | 09/30/2025 | 10:55:34 | 74.42, 4.48 | 77.52 | 1.08 | 72 |
| 12 | 09/30/2025 | 11:45:04 | -74.34, 171.99 | 102.55 | 09/30/2025 | 11:44:56 | -74.36, 172.02 | 102.52 | 3.28 | 8 |
| 13 | 10/02/2025 | 21:15:59 | -74.40, 29.09 | 101.55 | 10/02/2025 | 21:17:07 | -74.40, 29.01 | 101.56 | 2.49 | 68 |
Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 9/18/2025
Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 09/18/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and TERRA