Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 25.  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)
 06/26/2025   03:48:27   (   0.04, 140.78) (   0.86, 144.35)  407.68                80
 06/27/2025   16:10:15   (  -0.04, 140.76) (   0.36, 139.09)  191.56                80
 06/28/2025   15:48:51   (  -0.04, 140.75) (  -0.70, 143.61)  325.98                80
 06/30/2025   04:10:49   (   0.05, 140.72) (  -0.51, 138.30)  276.36                80
 07/01/2025   03:54:45   (   0.05, 140.70) (   0.54, 142.82)  241.99                80
 07/02/2025   16:16:32   (  -0.05, 140.67) (   0.67, 137.56)  355.04                80
 07/03/2025   15:55:09   (  -0.05, 140.65) (  -0.39, 142.08)  163.52                80
 07/05/2025   04:17:06   (   0.05, 140.61) (  -0.81, 136.77)  437.85                80
 07/06/2025   04:01:03   (   0.06, 140.59) (   0.24, 141.29)   81.09                80
 07/08/2025   16:01:27   (  -0.06, 140.52) (  -0.09, 140.55)    4.53                80