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: 11/21/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 11/22/2025 | 03:54:12 | -0.02, 140.77 | 0.46, 143.04 | 258.88 | 80 |
| 2 | 11/23/2025 | 16:16:03 | 0.02, 140.79 | 0.71, 137.77 | 345.16 | 80 |
| 3 | 11/24/2025 | 15:54:40 | 0.01, 140.81 | -0.32, 142.29 | 168.40 | 80 |
| 4 | 11/26/2025 | 04:16:41 | -0.01, 140.84 | -0.84, 136.97 | 440.49 | 80 |
| 5 | 11/27/2025 | 04:00:37 | 0.00, 140.85 | 0.13, 141.50 | 73.82 | 80 |
| 6 | 11/29/2025 | 16:03:45 | -0.00, 140.87 | 0.01, 140.74 | 13.91 | 80 |
| 7 | 12/02/2025 | 04:04:21 | -0.01, 140.89 | -0.24, 139.96 | 106.50 | 80 |
| 8 | 12/03/2025 | 03:48:18 | -0.01, 140.90 | 0.79, 144.48 | 408.64 | 80 |
| 9 | 12/04/2025 | 16:10:09 | 0.02, 140.90 | 0.38, 139.21 | 192.65 | 80 |
| 10 | 12/05/2025 | 15:48:45 | 0.01, 140.91 | -0.60, 143.74 | 322.26 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/21/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 11/21/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21