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: 4/23/2025
| Index | Date | Time (HIMAWARI-9) | HIMAWARI-9 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 04/24/2025 | 16:09:17 | 0.02, 140.74 | 0.35, 139.34 | 160.28 | 80 |
| 2 | 04/25/2025 | 15:47:54 | 0.02, 140.73 | -0.70, 143.86 | 356.42 | 80 |
| 3 | 04/27/2025 | 04:09:53 | -0.02, 140.71 | -0.47, 138.54 | 246.28 | 80 |
| 4 | 04/28/2025 | 03:53:49 | -0.01, 140.70 | 0.53, 143.07 | 270.84 | 80 |
| 5 | 04/29/2025 | 16:15:40 | 0.01, 140.68 | 0.67, 137.79 | 329.33 | 80 |
| 6 | 04/30/2025 | 15:54:16 | 0.01, 140.67 | -0.33, 142.32 | 187.80 | 80 |
| 7 | 05/02/2025 | 04:16:14 | -0.02, 140.64 | -0.82, 137.00 | 414.28 | 80 |
| 8 | 05/03/2025 | 04:00:11 | -0.02, 140.62 | 0.18, 141.53 | 103.67 | 80 |
| 9 | 05/04/2025 | 16:22:01 | 0.03, 140.59 | 1.00, 136.25 | 494.48 | 80 |
| 10 | 05/05/2025 | 16:00:38 | 0.03, 140.56 | -0.00, 140.78 | 23.91 | 80 |
Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 4/23/2025
Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 04/23/2025 in txt file.
Historical Predications of SNOs between HIMAWARI-9 and NOAA-21