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: 8/16/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 08/17/2025 | 04:10:56 | -0.01, 140.76 | -0.56, 138.28 | 282.66 | 80 |
| 2 | 08/18/2025 | 03:54:52 | 0.01, 140.76 | 0.47, 142.80 | 232.83 | 80 |
| 3 | 08/19/2025 | 16:16:39 | -0.01, 140.77 | 0.74, 137.54 | 368.41 | 80 |
| 4 | 08/20/2025 | 15:55:15 | -0.00, 140.77 | -0.29, 142.07 | 148.03 | 80 |
| 5 | 08/22/2025 | 04:17:10 | -0.00, 140.76 | -0.92, 136.77 | 455.42 | 80 |
| 6 | 08/23/2025 | 04:01:06 | -0.00, 140.76 | 0.11, 141.30 | 61.89 | 80 |
| 7 | 08/25/2025 | 16:04:10 | 0.00, 140.73 | 0.01, 140.55 | 19.73 | 80 |
| 8 | 08/26/2025 | 15:42:44 | 0.00, 140.72 | -0.96, 145.09 | 498.33 | 80 |
| 9 | 08/28/2025 | 04:04:40 | -0.00, 140.70 | -0.18, 139.78 | 103.29 | 80 |
| 10 | 08/29/2025 | 03:48:35 | -0.01, 140.68 | 0.80, 144.32 | 415.07 | 80 |
| 11 | 08/30/2025 | 16:10:23 | 0.01, 140.65 | 0.36, 139.05 | 182.62 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 8/16/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 08/16/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21