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: 9/18/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 09/19/2025 | 03:54:40 | 0.04, 140.72 | 0.52, 142.85 | 243.75 | 80 |
| 2 | 09/20/2025 | 16:16:28 | -0.04, 140.75 | 0.65, 137.59 | 360.76 | 80 |
| 3 | 09/21/2025 | 15:55:02 | -0.04, 140.74 | -0.35, 142.12 | 157.84 | 80 |
| 4 | 09/23/2025 | 04:16:58 | 0.04, 140.65 | -0.81, 136.82 | 436.02 | 80 |
| 5 | 09/24/2025 | 04:00:52 | 0.04, 140.62 | 0.19, 141.36 | 83.37 | 80 |
| 6 | 09/26/2025 | 16:01:14 | -0.04, 140.62 | -0.03, 140.62 | 0.53 | 80 |
| 7 | 09/29/2025 | 04:04:24 | 0.04, 140.50 | -0.11, 139.85 | 74.23 | 80 |
| 8 | 09/30/2025 | 03:48:18 | 0.04, 140.47 | 0.89, 144.39 | 445.64 | 80 |
| 9 | 10/01/2025 | 16:10:06 | -0.05, 140.48 | 0.26, 139.12 | 155.72 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/18/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 09/18/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21