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: 6/22/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 06/23/2025 | 15:42:33 | -0.02, 140.76 | -0.97, 145.14 | 498.27 | 80 |
| 2 | 06/25/2025 | 04:04:31 | 0.01, 140.77 | -0.17, 139.82 | 106.88 | 80 |
| 3 | 06/26/2025 | 03:48:27 | 0.01, 140.76 | 0.82, 144.36 | 409.55 | 80 |
| 4 | 06/27/2025 | 16:10:15 | -0.01, 140.76 | 0.34, 139.08 | 190.13 | 80 |
| 5 | 06/28/2025 | 15:48:51 | -0.01, 140.75 | -0.66, 143.61 | 326.88 | 80 |
| 6 | 06/30/2025 | 04:10:48 | 0.00, 140.73 | -0.55, 138.31 | 276.54 | 80 |
| 7 | 07/01/2025 | 03:54:43 | -0.00, 140.72 | 0.44, 142.84 | 241.26 | 80 |
| 8 | 07/02/2025 | 16:16:32 | 0.00, 140.69 | 0.71, 137.57 | 356.32 | 80 |
| 9 | 07/03/2025 | 15:55:07 | 0.00, 140.68 | -0.29, 142.10 | 161.72 | 80 |
| 10 | 07/05/2025 | 04:17:06 | -0.01, 140.65 | -0.85, 136.78 | 440.72 | 80 |
| 11 | 07/06/2025 | 04:01:01 | -0.01, 140.63 | 0.14, 141.31 | 77.70 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 6/22/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 06/22/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21