Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between HIMAWARI-9 and NOAA-21 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/7/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 08/09/2025 | 16:04:10 | 0.02, 140.78 | 0.05, 140.56 | 25.35 | 80 |
| 2 | 08/10/2025 | 15:42:46 | 0.03, 140.78 | -0.97, 145.09 | 491.21 | 80 |
| 3 | 08/12/2025 | 04:04:42 | -0.03, 140.77 | -0.22, 139.78 | 112.24 | 80 |
| 4 | 08/13/2025 | 03:48:37 | -0.03, 140.77 | 0.75, 144.32 | 404.89 | 80 |
| 5 | 08/14/2025 | 16:10:25 | 0.03, 140.76 | 0.40, 139.05 | 194.76 | 80 |
| 6 | 08/15/2025 | 15:49:00 | 0.03, 140.75 | -0.62, 143.58 | 322.26 | 80 |
| 7 | 08/17/2025 | 04:10:56 | -0.04, 140.74 | -0.61, 138.28 | 280.83 | 80 |
| 8 | 08/18/2025 | 03:54:51 | -0.04, 140.73 | 0.42, 142.81 | 236.65 | 80 |
| 9 | 08/19/2025 | 16:16:40 | 0.05, 140.72 | 0.74, 137.54 | 361.97 | 80 |
| 10 | 08/20/2025 | 15:55:14 | 0.05, 140.71 | -0.23, 142.08 | 155.75 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/7/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 08/07/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21