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: 9/29/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 09/30/2025 | 03:48:16 | 0.02, 140.76 | 0.82, 144.41 | 415.66 | 80 |
| 2 | 10/01/2025 | 16:10:02 | -0.02, 140.84 | 0.37, 139.15 | 192.32 | 80 |
| 3 | 10/02/2025 | 15:48:37 | -0.02, 140.86 | -0.65, 143.69 | 321.89 | 80 |
| 4 | 10/04/2025 | 04:10:31 | 0.03, 140.86 | -0.55, 138.40 | 281.73 | 80 |
| 5 | 10/05/2025 | 03:54:26 | 0.03, 140.88 | 0.48, 142.93 | 233.35 | 80 |
| 6 | 10/06/2025 | 16:16:12 | -0.03, 140.93 | 0.69, 137.66 | 372.40 | 80 |
| 7 | 10/07/2025 | 15:54:46 | -0.03, 140.95 | -0.28, 142.21 | 142.70 | 80 |
| 8 | 10/09/2025 | 04:16:40 | 0.03, 140.95 | -0.91, 136.92 | 460.60 | 80 |
| 9 | 10/10/2025 | 04:00:34 | 0.02, 140.97 | 0.13, 141.45 | 54.89 | 80 |
| 10 | 10/12/2025 | 16:03:34 | -0.03, 141.03 | 0.04, 140.72 | 34.50 | 80 |
| 11 | 10/13/2025 | 15:42:09 | -0.03, 141.04 | -1.01, 145.25 | 480.98 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/29/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 09/29/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21