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: 10/6/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 10/06/2025 | 16:16:12 | -0.02, 140.79 | 0.65, 137.66 | 355.69 | 80 |
| 2 | 10/07/2025 | 15:54:46 | -0.02, 140.80 | -0.33, 142.20 | 159.77 | 80 |
| 3 | 10/09/2025 | 04:16:40 | 0.03, 140.82 | -0.86, 136.91 | 446.29 | 80 |
| 4 | 10/10/2025 | 04:00:35 | 0.03, 140.84 | 0.17, 141.44 | 69.38 | 80 |
| 5 | 10/12/2025 | 16:03:35 | -0.04, 140.86 | -0.01, 140.72 | 16.12 | 80 |
| 6 | 10/13/2025 | 15:42:08 | -0.04, 140.87 | -1.00, 145.26 | 499.77 | 80 |
| 7 | 10/15/2025 | 04:04:02 | 0.04, 140.89 | -0.18, 139.97 | 105.30 | 80 |
| 8 | 10/16/2025 | 03:47:57 | 0.05, 140.89 | 0.86, 144.50 | 411.55 | 80 |
| 9 | 10/17/2025 | 16:09:42 | -0.05, 140.88 | 0.32, 139.24 | 187.01 | 80 |
| 10 | 10/18/2025 | 15:48:16 | -0.05, 140.88 | -0.68, 143.78 | 330.29 | 80 |
| 11 | 10/20/2025 | 04:10:10 | 0.05, 140.88 | -0.50, 138.49 | 273.16 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/6/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 10/06/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21