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: 7/13/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 07/14/2025 | 15:48:57 | -0.03, 140.77 | -0.69, 143.58 | 321.26 | 80 |
| 2 | 07/16/2025 | 04:10:55 | 0.03, 140.74 | -0.51, 138.28 | 280.60 | 80 |
| 3 | 07/17/2025 | 03:54:50 | 0.04, 140.72 | 0.50, 142.81 | 237.68 | 80 |
| 4 | 07/18/2025 | 16:16:38 | -0.04, 140.69 | 0.70, 137.54 | 360.05 | 80 |
| 5 | 07/19/2025 | 15:55:14 | -0.04, 140.68 | -0.37, 142.06 | 158.05 | 80 |
| 6 | 07/21/2025 | 04:17:11 | 0.05, 140.65 | -0.82, 136.75 | 443.79 | 80 |
| 7 | 07/22/2025 | 04:01:07 | 0.05, 140.63 | 0.19, 141.28 | 74.73 | 80 |
| 8 | 07/24/2025 | 16:04:11 | -0.06, 140.56 | -0.06, 140.54 | 3.15 | 80 |
| 9 | 07/27/2025 | 04:04:44 | 0.06, 140.49 | -0.10, 139.76 | 83.63 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/13/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/13/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21