Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 4 18.  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)
 04/19/2024   04:03:19   (  -0.03, 140.78) (  -0.21, 139.88)  102.53                80
 04/20/2024   03:47:14   (  -0.03, 140.78) (   0.81, 144.41)  414.53                80
 04/21/2024   16:09:02   (   0.02, 140.76) (   0.40, 139.15)  184.16                80
 04/22/2024   15:47:37   (   0.02, 140.76) (  -0.63, 143.68)  333.17                80
 04/24/2024   04:09:33   (  -0.01, 140.75) (  -0.53, 138.38)  270.49                80
 04/25/2024   03:53:29   (  -0.01, 140.74) (   0.50, 142.91)  247.09                80
 04/26/2024   16:12:36   (  -0.00, 140.72) (   0.69, 137.64)  350.92                80
 04/27/2024   15:56:32   (  -0.00, 140.71) (  -0.36, 142.17)  166.85                80
 04/29/2024   04:15:47   (   0.01, 140.71) (  -0.84, 136.88)  436.26                80
 04/30/2024   03:59:42   (   0.00, 140.70) (   0.15, 141.42)   81.89                80