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: 7/27/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 07/28/2025 | 03:48:38 | 0.04, 140.75 | 0.87, 144.30 | 405.03 | 80 |
| 2 | 07/29/2025 | 16:10:25 | -0.04, 140.74 | 0.33, 139.04 | 194.51 | 80 |
| 3 | 07/30/2025 | 15:49:01 | -0.04, 140.72 | -0.68, 143.57 | 324.40 | 80 |
| 4 | 08/01/2025 | 04:10:58 | 0.05, 140.66 | -0.47, 138.25 | 273.42 | 80 |
| 5 | 08/02/2025 | 03:54:54 | 0.05, 140.63 | 0.54, 142.78 | 245.98 | 80 |
| 6 | 08/03/2025 | 16:16:41 | -0.06, 140.61 | 0.66, 137.52 | 352.49 | 80 |
| 7 | 08/04/2025 | 15:55:17 | -0.06, 140.58 | -0.36, 142.05 | 166.82 | 80 |
| 8 | 08/06/2025 | 04:17:14 | 0.07, 140.51 | -0.78, 136.73 | 430.76 | 80 |
| 9 | 08/07/2025 | 04:01:09 | 0.07, 140.48 | 0.24, 141.26 | 89.10 | 80 |
| 10 | 08/09/2025 | 16:01:33 | -0.08, 140.41 | -0.12, 140.52 | 12.16 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/27/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/27/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21