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: 10/18/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 10/20/2025 | 04:10:11 | 0.03, 140.75 | -0.48, 138.48 | 258.25 | 80 |
| 2 | 10/21/2025 | 03:54:04 | 0.03, 140.74 | 0.52, 143.03 | 259.74 | 80 |
| 3 | 10/22/2025 | 16:15:50 | -0.02, 140.72 | 0.64, 137.77 | 336.79 | 80 |
| 4 | 10/23/2025 | 15:54:23 | -0.02, 140.71 | -0.36, 142.31 | 181.38 | 80 |
| 5 | 10/25/2025 | 04:18:57 | 0.01, 140.71 | -0.82, 137.01 | 421.35 | 80 |
| 6 | 10/26/2025 | 03:57:31 | 0.01, 140.70 | 0.18, 141.55 | 97.06 | 80 |
| 7 | 10/27/2025 | 16:21:56 | -0.01, 140.67 | 0.96, 136.29 | 498.52 | 80 |
| 8 | 10/28/2025 | 16:00:30 | -0.01, 140.66 | -0.05, 140.83 | 19.99 | 80 |
| 9 | 10/31/2025 | 04:06:18 | 0.01, 140.63 | -0.12, 140.08 | 62.91 | 80 |
| 10 | 11/01/2025 | 03:44:51 | 0.02, 140.61 | 0.90, 144.62 | 456.43 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/18/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 10/18/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21