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: 8/12/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 08/13/2025 | 03:48:38 | 0.00, 140.76 | 0.80, 144.31 | 405.39 | 80 |
| 2 | 08/14/2025 | 16:10:25 | -0.00, 140.75 | 0.40, 139.05 | 194.52 | 80 |
| 3 | 08/15/2025 | 15:49:00 | 0.00, 140.74 | -0.62, 143.58 | 323.40 | 80 |
| 4 | 08/17/2025 | 04:10:57 | -0.01, 140.70 | -0.55, 138.27 | 276.82 | 80 |
| 5 | 08/18/2025 | 03:54:52 | -0.01, 140.69 | 0.48, 142.80 | 241.53 | 80 |
| 6 | 08/19/2025 | 16:16:39 | 0.01, 140.67 | 0.73, 137.54 | 357.34 | 80 |
| 7 | 08/20/2025 | 15:55:15 | 0.02, 140.65 | -0.30, 142.07 | 161.22 | 80 |
| 8 | 08/22/2025 | 04:17:11 | -0.02, 140.60 | -0.85, 136.76 | 437.90 | 80 |
| 9 | 08/23/2025 | 04:01:06 | -0.02, 140.58 | 0.13, 141.30 | 81.62 | 80 |
| 10 | 08/25/2025 | 16:01:30 | 0.02, 140.51 | -0.00, 140.55 | 4.97 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/12/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 08/12/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21