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: 10/22/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 10/23/2025 | 15:54:23 | -0.01, 140.74 | -0.37, 142.31 | 179.22 | 80 |
| 2 | 10/25/2025 | 04:16:18 | 0.01, 140.74 | -0.81, 137.01 | 424.53 | 80 |
| 3 | 10/26/2025 | 04:00:11 | 0.00, 140.74 | 0.19, 141.55 | 93.26 | 80 |
| 4 | 10/28/2025 | 16:00:30 | -0.00, 140.71 | -0.06, 140.83 | 14.55 | 80 |
| 5 | 10/31/2025 | 04:03:38 | 0.00, 140.70 | -0.10, 140.08 | 70.22 | 80 |
| 6 | 11/01/2025 | 03:47:31 | 0.00, 140.68 | 0.91, 144.62 | 448.63 | 80 |
| 7 | 11/02/2025 | 16:09:16 | -0.00, 140.65 | 0.27, 139.36 | 146.72 | 80 |
| 8 | 11/03/2025 | 15:47:49 | -0.00, 140.64 | -0.74, 143.90 | 372.34 | 80 |
| 9 | 11/05/2025 | 04:09:42 | 0.00, 140.62 | -0.48, 138.62 | 229.28 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/22/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 10/22/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21