Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and NOAA-19 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/2/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (NOAA-19) | Time (NOAA-19) | Lat,Lon (NOAA-19) | SZA (NOAA-19 ) | Distance(km) | Time Diff (sec) |
| 1 | 08/03/2025 | 20:49:40 | 70.27,-136.36 | 53.01 | 08/03/2025 | 20:48:30 | 70.28,-137.87 | 53.11 | 56.77 | 70 |
| 2 | 08/03/2025 | 21:40:31 | -70.63, 30.39 | 126.60 | 08/03/2025 | 21:39:17 | -70.66, 30.02 | 126.55 | 13.94 | 74 |
| 3 | 08/03/2025 | 22:31:18 | 70.75,-162.50 | 53.54 | 08/03/2025 | 22:30:16 | 70.77,-162.55 | 53.57 | 2.57 | 62 |
| 4 | 08/03/2025 | 23:22:03 | -70.79, 4.75 | 126.41 | 08/03/2025 | 23:21:10 | -70.78, 4.74 | 126.42 | 1.46 | 53 |
| 5 | 08/04/2025 | 00:12:49 | 70.81, 172.03 | 53.62 | 08/04/2025 | 00:12:12 | 70.79, 172.00 | 53.61 | 2.71 | 37 |
| 6 | 08/04/2025 | 01:03:33 | -70.80, -20.63 | 126.39 | 08/04/2025 | 01:03:06 | -70.80, -20.71 | 126.38 | 2.82 | 27 |
| 7 | 08/04/2025 | 01:54:20 | 70.87, 146.56 | 53.70 | 08/04/2025 | 01:54:07 | 70.86, 146.64 | 53.69 | 2.96 | 13 |
| 8 | 08/04/2025 | 02:45:04 | -70.85, -46.10 | 126.31 | 08/04/2025 | 02:45:01 | -70.87, -46.07 | 126.30 | 1.83 | 3 |
| 9 | 08/04/2025 | 03:35:50 | 70.87, 121.18 | 53.72 | 08/04/2025 | 03:36:03 | 70.88, 121.19 | 53.73 | 0.54 | 13 |
| 10 | 08/04/2025 | 04:26:35 | -70.91, -71.57 | 126.23 | 08/04/2025 | 04:26:57 | -70.88, -71.52 | 126.26 | 3.26 | 22 |
| 11 | 08/04/2025 | 05:17:20 | 70.88, 95.79 | 53.75 | 08/04/2025 | 05:17:59 | 70.89, 95.73 | 53.76 | 2.96 | 39 |
| 12 | 08/04/2025 | 06:08:05 | -70.91, -96.95 | 126.21 | 08/04/2025 | 06:08:53 | -70.90, -96.98 | 126.23 | 1.53 | 48 |
| 13 | 08/04/2025 | 06:58:51 | 70.93, 70.32 | 53.83 | 08/04/2025 | 06:59:55 | 70.91, 70.28 | 53.80 | 2.81 | 64 |
| 14 | 08/04/2025 | 07:49:36 | -70.97,-122.42 | 126.13 | 08/04/2025 | 07:50:48 | -70.97,-122.34 | 126.14 | 3.10 | 72 |
| 15 | 08/04/2025 | 08:40:32 | 71.51, 43.95 | 54.46 | 08/04/2025 | 08:41:41 | 71.45, 45.75 | 54.31 | 64.04 | 69 |
Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 8/2/2025
Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 08/02/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and NOAA-19