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: 7/15/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 07/16/2025 | 04:10:54 | -0.02, 140.76 | -0.57, 138.29 | 281.52 | 80 |
| 2 | 07/17/2025 | 03:54:49 | -0.02, 140.75 | 0.44, 142.82 | 235.37 | 80 |
| 3 | 07/18/2025 | 16:16:37 | 0.01, 140.74 | 0.70, 137.54 | 364.09 | 80 |
| 4 | 07/19/2025 | 15:55:13 | -0.01, 140.74 | -0.30, 142.07 | 152.35 | 80 |
| 5 | 07/21/2025 | 04:17:10 | 0.01, 140.73 | -0.88, 136.77 | 451.96 | 80 |
| 6 | 07/22/2025 | 04:01:06 | 0.01, 140.72 | 0.13, 141.30 | 65.38 | 80 |
| 7 | 07/24/2025 | 16:04:10 | -0.00, 140.69 | 0.01, 140.55 | 15.21 | 80 |
| 8 | 07/27/2025 | 04:04:42 | -0.00, 140.65 | -0.17, 139.77 | 99.43 | 80 |
| 9 | 07/28/2025 | 03:48:38 | -0.00, 140.63 | 0.84, 144.30 | 419.42 | 80 |
| 10 | 07/29/2025 | 16:10:25 | 0.00, 140.58 | 0.37, 139.04 | 176.25 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/15/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/15/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21