Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 14.  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)
 04/16/2025   04:16:16   (  -0.01, 140.78) (  -0.82, 137.01)  429.31                80
 04/17/2025   04:00:10   (  -0.01, 140.78) (   0.18, 141.54)   87.47                80
 04/19/2025   16:00:28   (   0.01, 140.79) (  -0.01, 140.82)    4.73                80
 04/22/2025   04:03:34   (  -0.02, 140.79) (  -0.21, 140.08)   81.52                80
 04/23/2025   03:47:28   (  -0.02, 140.79) (   0.81, 144.62)  436.25                80
 04/24/2025   16:09:13   (   0.03, 140.78) (   0.37, 139.36)  162.32                80
 04/25/2025   15:47:47   (   0.02, 140.77) (  -0.65, 143.90)  355.51                80
 04/27/2025   04:09:40   (  -0.02, 140.76) (  -0.50, 138.60)  246.29                80
 04/28/2025   03:53:33   (  -0.02, 140.75) (   0.53, 143.14)  271.94                80