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: 4/5/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 04/06/2025 | 04:04:01 | -0.04, 140.79 | -0.24, 139.99 | 91.56 | 80 |
| 2 | 04/07/2025 | 03:47:55 | -0.04, 140.78 | 0.81, 144.52 | 425.85 | 80 |
| 3 | 04/08/2025 | 16:09:40 | 0.05, 140.78 | 0.38, 139.26 | 173.56 | 80 |
| 4 | 04/09/2025 | 15:48:14 | 0.05, 140.77 | -0.60, 143.80 | 344.29 | 80 |
| 5 | 04/11/2025 | 04:10:08 | -0.05, 140.75 | -0.57, 138.50 | 256.77 | 80 |
| 6 | 04/12/2025 | 03:54:03 | -0.05, 140.74 | 0.49, 143.03 | 261.76 | 80 |
| 7 | 04/13/2025 | 16:15:48 | 0.05, 140.72 | 0.69, 137.77 | 335.99 | 80 |
| 8 | 04/14/2025 | 15:54:22 | 0.05, 140.71 | -0.31, 142.31 | 182.61 | 80 |
| 9 | 04/16/2025 | 04:16:15 | -0.05, 140.68 | -0.89, 137.02 | 417.70 | 80 |
| 10 | 04/17/2025 | 04:00:09 | -0.05, 140.66 | 0.17, 141.54 | 101.39 | 80 |
| 11 | 04/18/2025 | 16:21:55 | 0.06, 140.64 | 1.01, 136.29 | 495.52 | 80 |
| 12 | 04/19/2025 | 16:00:28 | 0.06, 140.62 | -0.00, 140.82 | 23.68 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/5/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 04/05/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21