Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 29.  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   (   0.02, 140.75) (  -0.53, 138.31)  278.07                80
 07/01/2025   03:54:44   (   0.02, 140.73) (   0.47, 142.84)  239.32                80
 07/02/2025   16:16:32   (  -0.02, 140.71) (   0.68, 137.56)  359.15                80
 07/03/2025   15:55:08   (  -0.03, 140.70) (  -0.31, 142.10)  158.48                80
 07/05/2025   04:17:06   (   0.03, 140.68) (  -0.83, 136.78)  444.46                80
 07/06/2025   04:01:01   (   0.03, 140.66) (   0.16, 141.31)   73.51                80
 07/08/2025   16:04:05   (  -0.04, 140.62) (  -0.02, 140.57)    6.19                80
 07/11/2025   04:04:39   (   0.05, 140.57) (  -0.13, 139.78)   90.19                80
 07/12/2025   03:48:35   (   0.05, 140.55) (   0.88, 144.31)  428.48                80
 07/13/2025   16:10:23   (  -0.06, 140.51) (   0.27, 139.04)  167.73                80