Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 30.  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)
 07/01/2025   03:54:44   (   0.02, 140.73) (   0.49, 142.84)  239.32                80
 07/02/2025   16:16:32   (  -0.02, 140.71) (   0.66, 137.56)  359.20                80
 07/03/2025   15:55:08   (  -0.02, 140.70) (  -0.34, 142.09)  158.39                80
 07/05/2025   04:17:05   (   0.03, 140.68) (  -0.87, 136.79)  444.57                80
 07/06/2025   04:01:02   (   0.03, 140.66) (   0.19, 141.31)   73.40                80
 07/08/2025   16:04:06   (  -0.04, 140.62) (  -0.04, 140.56)    6.50                80
 07/11/2025   04:04:38   (   0.05, 140.57) (  -0.15, 139.79)   90.40                80
 07/12/2025   03:48:35   (   0.05, 140.55) (   0.91, 144.31)  428.29                80
 07/13/2025   16:10:22   (  -0.05, 140.51) (   0.29, 139.04)  167.95                80
 07/14/2025   15:48:58   (  -0.05, 140.49) (  -0.71, 143.57)  351.09                80