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: 8/19/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 08/20/2025 | 15:55:15 | -0.01, 140.77 | -0.31, 142.07 | 147.62 | 80 |
| 2 | 08/22/2025 | 04:17:10 | 0.01, 140.77 | -0.91, 136.77 | 455.68 | 80 |
| 3 | 08/23/2025 | 04:01:06 | 0.00, 140.76 | 0.12, 141.30 | 61.51 | 80 |
| 4 | 08/25/2025 | 16:04:09 | -0.00, 140.74 | 0.05, 140.56 | 20.53 | 80 |
| 5 | 08/26/2025 | 15:42:44 | -0.00, 140.73 | -0.98, 145.09 | 497.28 | 80 |
| 6 | 08/28/2025 | 04:04:40 | 0.00, 140.70 | -0.22, 139.79 | 104.13 | 80 |
| 7 | 08/29/2025 | 03:48:35 | 0.00, 140.69 | 0.82, 144.32 | 414.09 | 80 |
| 8 | 08/30/2025 | 16:10:23 | 0.00, 140.67 | 0.34, 139.05 | 184.18 | 80 |
| 9 | 08/31/2025 | 15:48:58 | 0.00, 140.65 | -0.64, 143.59 | 334.08 | 80 |
| 10 | 09/02/2025 | 04:10:53 | -0.01, 140.62 | -0.54, 138.29 | 266.80 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/19/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 08/19/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21