Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 1 4.  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)
 01/05/2024   16:14:48   (   0.00, 140.74) (   0.71, 137.60)  358.35                80
 01/06/2024   15:53:24   (   0.01, 140.73) (  -0.33, 142.12)  159.16                80
 01/08/2024   04:15:19   (  -0.01, 140.72) (  -0.87, 136.83)  443.32                80
 01/09/2024   03:59:14   (  -0.01, 140.71) (   0.12, 141.37)   74.31                80
 01/11/2024   16:02:16   (  -0.00, 140.69) (   0.00, 140.63)    7.12                80
 01/14/2024   04:02:47   (   0.01, 140.66) (  -0.14, 139.85)   90.97                80
 01/15/2024   03:46:42   (   0.01, 140.64) (   0.85, 144.39)  427.62                80
 01/16/2024   16:08:29   (  -0.02, 140.61) (   0.31, 139.12)  169.26                80
 01/17/2024   15:47:04   (  -0.02, 140.59) (  -0.69, 143.66)  349.66                80