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: 6/21/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 06/22/2025 | 16:03:58 | -0.01, 140.76 | 0.01, 140.61 | 17.27 | 80 |
| 2 | 06/23/2025 | 15:42:33 | -0.01, 140.76 | -0.98, 145.14 | 498.63 | 80 |
| 3 | 06/25/2025 | 04:04:30 | 0.01, 140.77 | -0.23, 139.83 | 106.66 | 80 |
| 4 | 06/26/2025 | 03:48:27 | 0.00, 140.76 | 0.82, 144.36 | 409.88 | 80 |
| 5 | 06/27/2025 | 16:10:14 | 0.00, 140.75 | 0.39, 139.09 | 189.52 | 80 |
| 6 | 06/28/2025 | 15:48:51 | 0.01, 140.75 | -0.66, 143.61 | 327.53 | 80 |
| 7 | 06/30/2025 | 04:10:48 | -0.01, 140.73 | -0.55, 138.31 | 276.08 | 80 |
| 8 | 07/01/2025 | 03:54:44 | -0.01, 140.72 | 0.45, 142.84 | 241.71 | 80 |
| 9 | 07/02/2025 | 16:16:32 | 0.02, 140.69 | 0.70, 137.57 | 355.59 | 80 |
| 10 | 07/03/2025 | 15:55:07 | 0.02, 140.67 | -0.29, 142.10 | 162.46 | 80 |
| 11 | 07/05/2025 | 04:17:05 | -0.02, 140.65 | -0.91, 136.79 | 440.08 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/21/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 06/21/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21