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: 10/21/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 10/22/2025 | 16:15:50 | -0.01, 140.70 | 0.62, 137.76 | 333.95 | 80 |
| 2 | 10/23/2025 | 15:54:23 | -0.00, 140.69 | -0.38, 142.31 | 184.61 | 80 |
| 3 | 10/25/2025 | 04:16:18 | 0.00, 140.68 | -0.80, 137.01 | 417.66 | 80 |
| 4 | 10/26/2025 | 04:00:11 | 0.00, 140.66 | 0.20, 141.55 | 101.15 | 80 |
| 5 | 10/27/2025 | 16:21:56 | -0.00, 140.63 | 1.00, 136.30 | 494.32 | 80 |
| 6 | 10/28/2025 | 16:00:30 | -0.00, 140.62 | -0.07, 140.83 | 24.82 | 80 |
| 7 | 10/31/2025 | 04:03:38 | 0.00, 140.58 | -0.09, 140.07 | 57.08 | 80 |
| 8 | 11/01/2025 | 03:47:31 | 0.00, 140.56 | 0.92, 144.61 | 462.77 | 80 |
| 9 | 11/02/2025 | 16:09:16 | -0.00, 140.51 | 0.26, 139.36 | 130.94 | 80 |
| 10 | 11/03/2025 | 15:47:49 | -0.00, 140.48 | -0.76, 143.90 | 389.13 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/21/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 10/21/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21