Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 10.  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)
 10/12/2025   16:03:34   (  -0.01, 140.81) (   0.01, 140.73)    9.83                80
 10/15/2025   04:04:03   (   0.02, 140.85) (  -0.16, 139.96)  100.95                80
 10/16/2025   03:47:57   (   0.02, 140.88) (   0.83, 144.51)  413.68                80
 10/17/2025   16:09:42   (  -0.02, 140.94) (   0.35, 139.25)  192.36                80
 10/18/2025   15:48:15   (  -0.02, 140.96) (  -0.64, 143.79)  322.60                80
 10/20/2025   04:10:10   (   0.02, 140.96) (  -0.55, 138.50)  280.66                80
 10/21/2025   03:54:04   (   0.02, 140.97) (   0.50, 143.03)  235.12                80
 10/22/2025   16:15:49   (  -0.02, 141.01) (   0.73, 137.78)  368.90                80
 10/23/2025   15:54:23   (  -0.02, 141.03) (  -0.33, 142.31)  146.66                80