Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 27.  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)
 06/28/2025   15:48:51   (  -0.03, 140.76) (  -0.65, 143.62)  325.45                80
 06/30/2025   04:10:49   (   0.04, 140.74) (  -0.50, 138.30)  278.35                80
 07/01/2025   03:54:44   (   0.04, 140.73) (   0.50, 142.83)  239.09                80
 07/02/2025   16:16:33   (  -0.04, 140.71) (   0.65, 137.56)  359.31                80
 07/03/2025   15:55:08   (  -0.04, 140.70) (  -0.34, 142.09)  158.36                80
 07/05/2025   04:17:06   (   0.05, 140.68) (  -0.80, 136.77)  444.47                80
 07/06/2025   04:01:02   (   0.05, 140.66) (   0.20, 141.30)   73.54                80
 07/08/2025   16:04:06   (  -0.06, 140.61) (  -0.05, 140.56)    5.89                80
 07/11/2025   04:04:40   (   0.07, 140.56) (  -0.09, 139.77)   89.90                80