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: 10/7/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 10/09/2025 | 04:16:41 | 0.01, 140.66 | -0.80, 136.90 | 428.32 | 80 |
| 2 | 10/10/2025 | 04:00:35 | 0.01, 140.64 | 0.18, 141.44 | 91.06 | 80 |
| 3 | 10/12/2025 | 16:00:55 | -0.01, 140.66 | -0.02, 140.72 | 7.07 | 80 |
| 4 | 10/15/2025 | 04:04:03 | 0.01, 140.53 | -0.13, 139.96 | 65.95 | 80 |
| 5 | 10/16/2025 | 03:47:58 | 0.01, 140.50 | 0.92, 144.49 | 454.53 | 80 |
| 6 | 10/17/2025 | 16:09:43 | -0.01, 140.51 | 0.27, 139.23 | 145.99 | 80 |
| 7 | 10/18/2025 | 15:48:17 | -0.01, 140.48 | -0.72, 143.77 | 374.71 | 80 |
| 8 | 10/20/2025 | 04:10:12 | 0.01, 140.37 | -0.40, 138.46 | 216.47 | 80 |
| 9 | 10/21/2025 | 03:54:06 | 0.01, 140.32 | 0.59, 143.01 | 305.17 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/7/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 10/07/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21