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: 10/31/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 11/01/2025 | 03:47:31 | 0.00, 140.74 | 0.89, 144.62 | 442.75 | 80 |
| 2 | 11/02/2025 | 16:09:15 | -0.00, 140.71 | 0.29, 139.37 | 152.53 | 80 |
| 3 | 11/03/2025 | 15:47:49 | -0.00, 140.70 | -0.72, 143.91 | 366.34 | 80 |
| 4 | 11/05/2025 | 04:09:43 | -0.00, 140.69 | -0.44, 138.61 | 235.73 | 80 |
| 5 | 11/06/2025 | 03:53:37 | -0.00, 140.67 | 0.57, 143.15 | 283.44 | 80 |
| 6 | 11/07/2025 | 16:15:21 | 0.00, 140.63 | 0.60, 137.90 | 311.08 | 80 |
| 7 | 11/08/2025 | 15:53:55 | 0.00, 140.62 | -0.43, 142.44 | 208.11 | 80 |
| 8 | 11/10/2025 | 04:15:49 | 0.02, 140.60 | -0.73, 137.14 | 394.17 | 80 |
| 9 | 11/11/2025 | 03:59:42 | 0.02, 140.58 | 0.29, 141.68 | 125.75 | 80 |
| 10 | 11/12/2025 | 16:21:26 | -0.02, 140.52 | 0.93, 136.43 | 466.93 | 80 |
| 11 | 11/13/2025 | 15:59:59 | -0.03, 140.50 | -0.10, 140.97 | 53.50 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/31/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 10/31/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21