Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 4 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)
 04/10/2024   16:15:15   (   0.01, 140.75) (   0.72, 137.62)  357.00                80
 04/11/2024   15:53:51   (   0.01, 140.74) (  -0.29, 142.16)  160.40                80
 04/13/2024   04:15:48   (  -0.01, 140.73) (  -0.87, 136.85)  442.80                80
 04/14/2024   03:59:43   (  -0.01, 140.72) (   0.13, 141.38)   75.15                80
 04/16/2024   16:02:47   (   0.01, 140.67) (   0.03, 140.64)    3.82                80
 04/19/2024   04:03:20   (  -0.01, 140.62) (  -0.16, 139.87)   85.67                80
 04/20/2024   03:44:36   (  -0.01, 140.59) (   0.85, 144.40)  433.69                80
 04/21/2024   16:09:04   (   0.01, 140.54) (   0.32, 139.13)  160.83                80
 04/22/2024   15:47:39   (   0.01, 140.51) (  -0.70, 143.66)  358.74                80