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) (   0.72, 137.60)  358.38                80
 01/06/2024   15:53:24   (   0.01, 140.73) (  -0.32, 142.13)  159.10                80
 01/08/2024   04:15:19   (  -0.01, 140.72) (  -0.88, 136.83)  443.39                80
 01/09/2024   03:59:14   (  -0.01, 140.71) (   0.16, 141.36)   74.22                80
 01/11/2024   16:02:16   (  -0.01, 140.69) (   0.01, 140.63)    7.20                80
 01/14/2024   04:02:47   (   0.01, 140.66) (  -0.16, 139.86)   91.09                80
 01/15/2024   03:46:42   (   0.01, 140.64) (   0.84, 144.40)  427.46                80
 01/16/2024   16:08:29   (  -0.02, 140.61) (   0.32, 139.13)  169.43                80
 01/17/2024   15:47:03   (  -0.02, 140.59) (  -0.68, 143.66)  349.49                80