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: 10/14/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 10/17/2025 | 01:44:28 | 0.02, 175.48 | -0.11, 174.85 | 70.74 | 80 |
| 2 | 10/18/2025 | 12:24:58 | -0.03,-163.27 | 0.41,-165.22 | 222.27 | 80 |
| 3 | 10/19/2025 | 23:08:46 | 0.02,-149.82 | 0.97,-145.72 | 468.12 | 80 |
| 4 | 10/20/2025 | 22:46:37 | 0.03,-138.12 | -0.56,-140.61 | 284.62 | 80 |
| 5 | 10/21/2025 | 09:49:17 | -0.03,-128.62 | -0.68,-125.80 | 321.85 | 80 |
| 6 | 10/22/2025 | 09:27:07 | -0.03,-116.70 | 0.85,-120.69 | 454.63 | 80 |
| 7 | 10/23/2025 | 20:10:55 | 0.03,-103.40 | 0.54,-101.19 | 252.81 | 80 |
| 8 | 10/25/2025 | 06:51:25 | -0.03, -82.02 | -0.19, -81.26 | 87.07 | 80 |
| 9 | 10/27/2025 | 17:13:05 | 0.03, -56.96 | 0.12, -56.66 | 35.25 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/14/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 10/14/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21