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: 9/20/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 09/21/2025 | 15:55:02 | -0.04, 140.81 | -0.32, 142.13 | 149.73 | 80 |
| 2 | 09/23/2025 | 04:16:57 | 0.04, 140.76 | -0.84, 136.83 | 448.20 | 80 |
| 3 | 09/24/2025 | 04:00:52 | 0.04, 140.76 | 0.17, 141.36 | 68.78 | 80 |
| 4 | 09/26/2025 | 16:03:53 | -0.04, 140.81 | -0.01, 140.63 | 20.34 | 80 |
| 5 | 09/27/2025 | 15:42:28 | -0.04, 140.81 | -1.02, 145.16 | 496.50 | 80 |
| 6 | 09/29/2025 | 04:04:23 | 0.04, 140.75 | -0.13, 139.86 | 101.01 | 80 |
| 7 | 09/30/2025 | 03:48:18 | 0.04, 140.75 | 0.88, 144.40 | 416.48 | 80 |
| 8 | 10/01/2025 | 16:10:04 | -0.05, 140.79 | 0.33, 139.14 | 188.15 | 80 |
| 9 | 10/02/2025 | 15:48:39 | -0.05, 140.78 | -0.68, 143.67 | 329.29 | 80 |
| 10 | 10/04/2025 | 04:10:34 | 0.06, 140.72 | -0.47, 138.37 | 267.80 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/20/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 09/20/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21