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: 7/24/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 07/25/2025 | 15:42:45 | -0.04, 140.80 | -0.98, 145.09 | 488.00 | 80 |
| 2 | 07/27/2025 | 04:04:42 | 0.05, 140.76 | -0.19, 139.78 | 112.02 | 80 |
| 3 | 07/28/2025 | 03:48:37 | 0.05, 140.74 | 0.82, 144.31 | 405.98 | 80 |
| 4 | 07/29/2025 | 16:10:26 | -0.05, 140.74 | 0.31, 139.03 | 194.66 | 80 |
| 5 | 07/30/2025 | 15:49:01 | -0.05, 140.73 | -0.70, 143.56 | 323.52 | 80 |
| 6 | 08/01/2025 | 04:10:59 | 0.06, 140.67 | -0.46, 138.25 | 275.42 | 80 |
| 7 | 08/02/2025 | 03:54:54 | 0.06, 140.65 | 0.56, 142.78 | 243.24 | 80 |
| 8 | 08/03/2025 | 16:16:41 | -0.06, 140.64 | 0.65, 137.52 | 356.37 | 80 |
| 9 | 08/04/2025 | 15:55:17 | -0.07, 140.62 | -0.37, 142.05 | 162.17 | 80 |
| 10 | 08/06/2025 | 04:17:14 | 0.07, 140.56 | -0.77, 136.73 | 436.48 | 80 |
| 11 | 08/07/2025 | 04:01:10 | 0.08, 140.54 | 0.25, 141.26 | 82.62 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/24/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/24/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21