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: 9/12/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 09/13/2025 | 04:04:33 | 0.02, 140.72 | -0.21, 139.83 | 102.13 | 80 |
| 2 | 09/14/2025 | 03:48:28 | 0.01, 140.74 | 0.85, 144.35 | 411.83 | 80 |
| 3 | 09/15/2025 | 16:10:15 | -0.02, 140.85 | 0.40, 139.10 | 199.75 | 80 |
| 4 | 09/16/2025 | 15:48:50 | -0.02, 140.87 | -0.66, 143.62 | 314.23 | 80 |
| 5 | 09/18/2025 | 04:10:45 | 0.02, 140.84 | -0.56, 138.33 | 286.58 | 80 |
| 6 | 09/19/2025 | 03:54:40 | 0.02, 140.86 | 0.49, 142.86 | 228.57 | 80 |
| 7 | 09/20/2025 | 16:16:26 | -0.03, 140.93 | 0.75, 137.60 | 380.12 | 80 |
| 8 | 09/21/2025 | 15:55:02 | -0.02, 140.95 | -0.31, 142.13 | 135.24 | 80 |
| 9 | 09/23/2025 | 04:16:56 | 0.02, 140.91 | -0.90, 136.84 | 464.54 | 80 |
| 10 | 09/24/2025 | 04:00:51 | 0.02, 140.91 | 0.10, 141.37 | 51.71 | 80 |
| 11 | 09/26/2025 | 16:03:53 | -0.02, 140.98 | 0.07, 140.64 | 39.12 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/12/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 09/12/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21