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: 6/30/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 07/01/2025 | 03:54:44 | 0.02, 140.73 | 0.49, 142.84 | 239.32 | 80 |
| 2 | 07/02/2025 | 16:16:32 | -0.02, 140.71 | 0.66, 137.56 | 359.20 | 80 |
| 3 | 07/03/2025 | 15:55:08 | -0.02, 140.70 | -0.34, 142.09 | 158.39 | 80 |
| 4 | 07/05/2025 | 04:17:05 | 0.03, 140.68 | -0.87, 136.79 | 444.57 | 80 |
| 5 | 07/06/2025 | 04:01:02 | 0.03, 140.66 | 0.19, 141.31 | 73.40 | 80 |
| 6 | 07/08/2025 | 16:04:06 | -0.04, 140.62 | -0.04, 140.56 | 6.50 | 80 |
| 7 | 07/11/2025 | 04:04:38 | 0.05, 140.57 | -0.15, 139.79 | 90.40 | 80 |
| 8 | 07/12/2025 | 03:48:35 | 0.05, 140.55 | 0.91, 144.31 | 428.29 | 80 |
| 9 | 07/13/2025 | 16:10:22 | -0.05, 140.51 | 0.29, 139.04 | 167.95 | 80 |
| 10 | 07/14/2025 | 15:48:58 | -0.05, 140.49 | -0.71, 143.57 | 351.09 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/30/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 06/30/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21