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: 8/20/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 08/22/2025 | 04:17:11 | 0.01, 140.77 | -0.88, 136.76 | 455.73 | 80 |
| 2 | 08/23/2025 | 04:01:05 | 0.01, 140.76 | 0.10, 141.31 | 61.50 | 80 |
| 3 | 08/25/2025 | 16:04:09 | -0.00, 140.74 | 0.02, 140.56 | 20.66 | 80 |
| 4 | 08/26/2025 | 15:42:44 | -0.00, 140.73 | -0.95, 145.10 | 497.10 | 80 |
| 5 | 08/28/2025 | 04:04:40 | 0.00, 140.71 | -0.19, 139.79 | 104.40 | 80 |
| 6 | 08/29/2025 | 03:48:35 | 0.00, 140.69 | 0.79, 144.33 | 413.77 | 80 |
| 7 | 08/30/2025 | 16:10:23 | -0.00, 140.67 | 0.37, 139.05 | 184.57 | 80 |
| 8 | 08/31/2025 | 15:48:58 | 0.00, 140.65 | -0.66, 143.58 | 333.61 | 80 |
| 9 | 09/02/2025 | 04:10:54 | -0.01, 140.63 | -0.52, 138.28 | 267.37 | 80 |
| 10 | 09/03/2025 | 03:54:49 | -0.01, 140.61 | 0.51, 142.81 | 251.32 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/20/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 08/20/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21