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: 9/21/2025
| 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 | -0.03, 140.75 | -0.36, 142.12 | 156.83 | 80 |
| 2 | 09/23/2025 | 04:16:57 | 0.03, 140.70 | -0.86, 136.83 | 441.87 | 80 |
| 3 | 09/24/2025 | 04:00:52 | 0.03, 140.67 | 0.21, 141.35 | 78.33 | 80 |
| 4 | 09/26/2025 | 16:01:14 | -0.03, 140.60 | -0.05, 140.62 | 3.96 | 80 |
| 5 | 09/29/2025 | 04:04:24 | 0.03, 140.51 | -0.09, 139.85 | 74.86 | 80 |
| 6 | 09/30/2025 | 03:48:18 | 0.04, 140.48 | 0.92, 144.39 | 445.81 | 80 |
| 7 | 10/01/2025 | 16:10:06 | -0.04, 140.42 | 0.22, 139.12 | 148.30 | 80 |
| 8 | 10/02/2025 | 15:48:40 | -0.04, 140.38 | -0.79, 143.65 | 372.53 | 80 |
| 9 | 10/04/2025 | 04:10:35 | 0.05, 140.32 | -0.42, 138.36 | 224.79 | 80 |
| 10 | 10/05/2025 | 03:54:30 | 0.05, 140.28 | 0.66, 142.88 | 296.84 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/21/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 09/21/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21