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   04:03:18   (  -0.01, 140.78) (  -0.24, 139.89)  103.02                80
 04/20/2024   03:47:14   (  -0.01, 140.77) (   0.78, 144.42)  415.27                80
 04/21/2024   16:09:02   (   0.02, 140.74) (   0.37, 139.14)  181.89                80
 04/22/2024   15:47:38   (   0.01, 140.72) (  -0.66, 143.67)  336.61                80
 04/24/2024   04:09:33   (  -0.01, 140.70) (  -0.56, 138.38)  264.38                80
 04/25/2024   03:53:29   (  -0.01, 140.68) (   0.48, 142.91)  254.52                80
 04/26/2024   16:15:16   (   0.02, 140.64) (   0.71, 137.65)  341.67                80
 04/27/2024   15:53:51   (   0.02, 140.62) (  -0.33, 142.18)  177.31                80
 04/29/2024   04:15:47   (  -0.03, 140.59) (  -0.87, 136.88)  423.12                80
 04/30/2024   03:59:42   (  -0.03, 140.57) (   0.18, 141.41)   96.30                80
 05/01/2024   16:21:28   (   0.04, 140.53) (   1.05, 136.16)  498.91                80
 05/02/2024   16:00:04   (   0.04, 140.50) (  -0.01, 140.68)   20.86                80