Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 28.  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)
 06/30/2025   04:10:48   (   0.03, 140.75) (  -0.52, 138.30)  278.26                80
 07/01/2025   03:54:44   (   0.03, 140.73) (   0.48, 142.84)  239.18                80
 07/02/2025   16:16:32   (  -0.03, 140.71) (   0.67, 137.56)  359.20                80
 07/03/2025   15:55:08   (  -0.03, 140.70) (  -0.32, 142.09)  158.48                80
 07/05/2025   04:17:06   (   0.04, 140.68) (  -0.82, 136.78)  444.38                80
 07/06/2025   04:01:02   (   0.04, 140.66) (   0.17, 141.31)   73.63                80
 07/08/2025   16:04:05   (  -0.05, 140.61) (  -0.03, 140.56)    6.03                80
 07/11/2025   04:04:39   (   0.06, 140.57) (  -0.11, 139.78)   89.82                80
 07/12/2025   03:48:35   (   0.06, 140.54) (   0.89, 144.31)  428.88                80