Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 14.  Predictions up to the next  14.0 days:

     Date     Time(HIMAWARI-9)   HIMAWARI-9 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/15/2025   16:15:58   (   0.02, 140.77) (   0.70, 137.71)  348.07                80
 05/16/2025   15:54:35   (   0.02, 140.77) (  -0.32, 142.24)  167.75                80
 05/18/2025   04:16:32   (  -0.02, 140.78) (  -0.87, 136.93)  437.85                80
 05/19/2025   04:00:28   (  -0.03, 140.77) (   0.15, 141.46)   78.62                80
 05/21/2025   16:03:34   (   0.03, 140.75) (   0.03, 140.71)    4.54                80
 05/24/2025   04:04:08   (  -0.03, 140.74) (  -0.20, 139.93)   92.06                80
 05/25/2025   03:48:05   (  -0.03, 140.72) (   0.83, 144.45)  425.08                80
 05/26/2025   16:07:14   (   0.01, 140.70) (   0.36, 139.18)  173.87                80
 05/27/2025   15:51:10   (   0.02, 140.69) (  -0.67, 143.70)  343.29                80