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: 9/7/2025
| 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 | 09/08/2025 | 14:30:15 | 74.30, -49.21 | 69.07 | 09/08/2025 | 14:31:05 | 74.30, -49.19 | 69.06 | 1.00 | 50 |
| 2 | 09/08/2025 | 15:20:58 | -74.24, 118.25 | 110.98 | 09/08/2025 | 15:20:27 | -74.25, 118.35 | 110.98 | 3.08 | 31 |
| 3 | 09/11/2025 | 00:51:54 | -74.32, -24.68 | 110.00 | 09/11/2025 | 00:52:40 | -74.33, -24.58 | 110.01 | 3.14 | 46 |
| 4 | 09/11/2025 | 01:42:38 | 74.24, 142.84 | 69.93 | 09/11/2025 | 01:41:59 | 74.23, 142.88 | 69.92 | 1.51 | 39 |
| 5 | 09/13/2025 | 11:13:34 | 74.32, -0.10 | 70.92 | 09/13/2025 | 11:14:11 | 74.33, -0.00 | 70.92 | 3.17 | 37 |
| 6 | 09/13/2025 | 12:04:16 | -74.22, 167.48 | 109.18 | 09/13/2025 | 12:03:34 | -74.23, 167.44 | 109.16 | 1.86 | 42 |
| 7 | 09/15/2025 | 21:35:12 | -74.31, 24.52 | 108.17 | 09/15/2025 | 21:35:46 | -74.31, 24.51 | 108.18 | 0.40 | 34 |
| 8 | 09/15/2025 | 22:25:56 | 74.22,-167.95 | 71.75 | 09/15/2025 | 22:25:04 | 74.26,-167.93 | 71.79 | 3.63 | 52 |
| 9 | 09/18/2025 | 07:56:51 | 74.32, 49.09 | 72.77 | 09/18/2025 | 07:57:15 | 74.31, 49.08 | 72.75 | 1.36 | 24 |
| 10 | 09/18/2025 | 08:47:34 | -74.27,-143.46 | 107.28 | 09/18/2025 | 08:46:37 | -74.27,-143.36 | 107.28 | 3.24 | 57 |
| 11 | 09/20/2025 | 18:18:29 | -74.32, 73.68 | 106.31 | 09/20/2025 | 18:18:48 | -74.34, 73.72 | 106.29 | 3.08 | 19 |
Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 9/7/2025
Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 09/07/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and TERRA