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: 5/7/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 05/08/2025 | 04:03:51 | -0.00, 140.76 | -0.17, 140.00 | 86.51 | 80 |
| 2 | 05/09/2025 | 03:47:48 | 0.00, 140.74 | 0.84, 144.52 | 431.50 | 80 |
| 3 | 05/10/2025 | 16:09:38 | -0.00, 140.70 | 0.32, 139.24 | 166.77 | 80 |
| 4 | 05/11/2025 | 15:48:15 | -0.00, 140.68 | -0.69, 143.77 | 351.29 | 80 |
| 5 | 05/13/2025 | 04:10:12 | 0.00, 140.65 | -0.50, 138.46 | 250.16 | 80 |
| 6 | 05/14/2025 | 03:54:09 | 0.00, 140.63 | 0.51, 142.98 | 268.32 | 80 |
| 7 | 05/15/2025 | 16:15:59 | -0.00, 140.59 | 0.64, 137.70 | 329.00 | 80 |
| 8 | 05/16/2025 | 15:54:35 | -0.00, 140.56 | -0.38, 142.23 | 189.43 | 80 |
| 9 | 05/18/2025 | 04:16:33 | 0.00, 140.53 | -0.81, 136.92 | 411.63 | 80 |
| 10 | 05/19/2025 | 04:00:29 | -0.00, 140.50 | 0.21, 141.44 | 107.57 | 80 |
| 11 | 05/20/2025 | 16:22:19 | 0.01, 140.44 | 1.00, 136.17 | 487.82 | 80 |
| 12 | 05/21/2025 | 16:00:55 | 0.01, 140.41 | -0.03, 140.69 | 31.66 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 5/7/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 05/07/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21