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: 7/17/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 07/18/2025 | 16:16:37 | 0.00, 140.75 | 0.71, 137.55 | 364.53 | 80 |
| 2 | 07/19/2025 | 15:55:13 | -0.01, 140.74 | -0.29, 142.08 | 152.12 | 80 |
| 3 | 07/21/2025 | 04:17:10 | 0.01, 140.73 | -0.89, 136.77 | 451.36 | 80 |
| 4 | 07/22/2025 | 04:01:06 | 0.00, 140.72 | 0.12, 141.30 | 66.07 | 80 |
| 5 | 07/24/2025 | 16:04:09 | 0.00, 140.69 | 0.01, 140.55 | 14.94 | 80 |
| 6 | 07/27/2025 | 04:04:42 | -0.01, 140.64 | -0.18, 139.77 | 98.38 | 80 |
| 7 | 07/28/2025 | 03:48:38 | -0.01, 140.62 | 0.84, 144.30 | 420.52 | 80 |
| 8 | 07/29/2025 | 16:10:25 | 0.01, 140.58 | 0.37, 139.04 | 175.69 | 80 |
| 9 | 07/30/2025 | 15:49:01 | 0.01, 140.55 | -0.65, 143.57 | 343.40 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/17/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/17/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21