Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 17.  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)
 01/18/2025   16:10:14   (  -0.02, 140.75) (   0.34, 139.21)  175.30                80
 01/19/2025   15:48:46   (  -0.02, 140.75) (  -0.66, 143.75)  341.85                80
 01/21/2025   04:10:39   (   0.02, 140.76) (  -0.49, 138.46)  261.62                80
 01/22/2025   03:54:31   (   0.02, 140.76) (   0.51, 143.00)  255.96                80
 01/23/2025   16:16:16   (  -0.03, 140.75) (   0.64, 137.74)  342.22                80
 01/24/2025   15:54:48   (  -0.03, 140.75) (  -0.37, 142.28)  175.35                80
 01/26/2025   04:16:40   (   0.03, 140.75) (  -0.78, 136.99)  427.86                80
 01/27/2025   04:00:33   (   0.04, 140.75) (   0.24, 141.53)   90.15                80
 01/29/2025   16:00:49   (  -0.04, 140.72) (  -0.07, 140.82)   11.22                80