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: 7/29/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 07/30/2025 | 15:49:00 | 0.02, 140.75 | -0.63, 143.58 | 322.70 | 80 |
| 2 | 08/01/2025 | 04:10:57 | -0.01, 140.72 | -0.53, 138.27 | 278.41 | 80 |
| 3 | 08/02/2025 | 03:54:53 | 0.01, 140.70 | 0.49, 142.80 | 238.88 | 80 |
| 4 | 08/03/2025 | 16:16:40 | -0.01, 140.70 | 0.71, 137.53 | 361.60 | 80 |
| 5 | 08/04/2025 | 15:55:16 | -0.01, 140.69 | -0.31, 142.06 | 156.09 | 80 |
| 6 | 08/06/2025 | 04:17:12 | 0.00, 140.65 | -0.89, 136.76 | 444.31 | 80 |
| 7 | 08/07/2025 | 04:01:08 | -0.00, 140.64 | 0.13, 141.29 | 73.96 | 80 |
| 8 | 08/09/2025 | 16:04:11 | 0.01, 140.61 | -0.01, 140.54 | 7.43 | 80 |
| 9 | 08/12/2025 | 04:04:42 | -0.01, 140.54 | -0.21, 139.78 | 87.15 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/29/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/29/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21