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: 7/26/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 07/27/2025 | 04:04:42 | 0.04, 140.77 | -0.16, 139.77 | 112.98 | 80 |
| 2 | 07/28/2025 | 03:48:38 | 0.04, 140.75 | 0.86, 144.30 | 404.97 | 80 |
| 3 | 07/29/2025 | 16:10:25 | -0.05, 140.76 | 0.34, 139.04 | 196.06 | 80 |
| 4 | 07/30/2025 | 15:49:01 | -0.05, 140.74 | -0.68, 143.57 | 322.05 | 80 |
| 5 | 08/01/2025 | 04:10:58 | 0.05, 140.69 | -0.48, 138.26 | 276.70 | 80 |
| 6 | 08/02/2025 | 03:54:54 | 0.05, 140.66 | 0.54, 142.79 | 241.89 | 80 |
| 7 | 08/03/2025 | 16:16:41 | -0.06, 140.66 | 0.66, 137.52 | 358.08 | 80 |
| 8 | 08/04/2025 | 15:55:17 | -0.06, 140.64 | -0.35, 142.05 | 160.43 | 80 |
| 9 | 08/06/2025 | 04:17:14 | 0.07, 140.58 | -0.79, 136.74 | 438.09 | 80 |
| 10 | 08/07/2025 | 04:01:09 | 0.07, 140.55 | 0.23, 141.26 | 80.96 | 80 |
| 11 | 08/09/2025 | 16:04:13 | -0.08, 140.51 | -0.11, 140.52 | 2.98 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 7/26/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 07/26/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21