Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 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)
 05/31/2025   16:16:13   (  -0.01, 140.78) (   0.70, 137.65)  357.36                80
 06/01/2025   15:54:50   (  -0.00, 140.78) (  -0.34, 142.17)  159.31                80
 06/03/2025   04:16:47   (  -0.00, 140.76) (  -0.86, 136.86)  443.69                80
 06/04/2025   04:00:42   (  -0.01, 140.75) (   0.12, 141.40)   73.64                80
 06/06/2025   16:03:48   (   0.00, 140.72) (   0.00, 140.64)    8.85                80
 06/09/2025   04:04:22   (   0.01, 140.68) (  -0.16, 139.86)   93.36                80
 06/10/2025   03:48:18   (   0.01, 140.66) (   0.82, 144.39)  424.55                80
 06/11/2025   16:10:07   (  -0.01, 140.64) (   0.32, 139.11)  174.12                80
 06/12/2025   15:48:42   (  -0.01, 140.63) (  -0.67, 143.65)  343.94                80