Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 4 20.  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)
 04/21/2024   16:09:02   (   0.01, 140.76) (   0.39, 139.15)  183.93                80
 04/22/2024   15:47:37   (   0.01, 140.74) (  -0.64, 143.68)  334.61                80
 04/24/2024   04:09:33   (  -0.01, 140.71) (  -0.52, 138.38)  265.97                80
 04/25/2024   03:53:29   (  -0.00, 140.69) (   0.52, 142.90)  252.96                80
 04/26/2024   16:15:16   (   0.01, 140.66) (   0.66, 137.64)  343.58                80
 04/27/2024   15:53:51   (   0.01, 140.64) (  -0.33, 142.18)  175.42                80
 04/29/2024   04:15:46   (  -0.02, 140.61) (  -0.86, 136.89)  424.54                80
 04/30/2024   03:59:41   (  -0.03, 140.59) (   0.14, 141.42)   94.91                80
 05/02/2024   16:00:02   (   0.04, 140.52) (   0.01, 140.69)   19.31                80