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: 9/23/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 09/24/2025 | 04:00:51 | 0.01, 140.72 | 0.13, 141.37 | 73.29 | 80 |
| 2 | 09/26/2025 | 16:03:53 | -0.01, 140.83 | 0.01, 140.64 | 21.66 | 80 |
| 3 | 09/27/2025 | 15:42:27 | -0.01, 140.85 | -1.00, 145.17 | 493.14 | 80 |
| 4 | 09/29/2025 | 04:04:22 | 0.01, 140.82 | -0.21, 139.88 | 107.20 | 80 |
| 5 | 09/30/2025 | 03:48:16 | 0.01, 140.83 | 0.81, 144.41 | 408.19 | 80 |
| 6 | 10/01/2025 | 16:10:02 | -0.01, 140.91 | 0.38, 139.15 | 199.89 | 80 |
| 7 | 10/02/2025 | 15:48:37 | -0.01, 140.92 | -0.64, 143.69 | 315.48 | 80 |
| 8 | 10/04/2025 | 04:10:31 | 0.02, 140.89 | -0.56, 138.39 | 284.47 | 80 |
| 9 | 10/05/2025 | 03:54:26 | 0.01, 140.89 | 0.47, 142.93 | 231.90 | 80 |
| 10 | 10/06/2025 | 16:16:12 | -0.02, 140.95 | 0.71, 137.66 | 373.79 | 80 |
| 11 | 10/07/2025 | 15:54:46 | -0.01, 140.95 | -0.27, 142.21 | 142.45 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/23/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 09/23/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21