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: 10/23/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 10/25/2025 | 04:16:17 | 0.01, 140.74 | -0.83, 137.02 | 424.50 | 80 |
| 2 | 10/26/2025 | 04:00:11 | 0.00, 140.74 | 0.17, 141.56 | 93.30 | 80 |
| 3 | 10/28/2025 | 16:00:30 | -0.00, 140.71 | -0.04, 140.84 | 14.24 | 80 |
| 4 | 10/31/2025 | 04:03:37 | 0.01, 140.70 | -0.13, 140.08 | 70.10 | 80 |
| 5 | 11/01/2025 | 03:47:31 | 0.00, 140.68 | 0.88, 144.62 | 448.67 | 80 |
| 6 | 11/02/2025 | 16:09:15 | -0.01, 140.65 | 0.30, 139.37 | 146.70 | 80 |
| 7 | 11/03/2025 | 15:47:49 | -0.00, 140.64 | -0.72, 143.91 | 372.38 | 80 |
| 8 | 11/05/2025 | 04:09:43 | 0.00, 140.62 | -0.45, 138.61 | 229.22 | 80 |
| 9 | 11/06/2025 | 03:53:37 | -0.00, 140.61 | 0.57, 143.15 | 290.02 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/23/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 10/23/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21