Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 24.  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)
 05/25/2025   03:48:05   (   0.00, 140.76) (   0.83, 144.45)  420.71                80
 05/26/2025   16:09:54   (  -0.00, 140.78) (   0.36, 139.18)  182.63                80
 05/27/2025   15:48:30   (  -0.01, 140.79) (  -0.67, 143.70)  332.64                80
 05/29/2025   04:10:28   (   0.00, 140.78) (  -0.52, 138.39)  272.13                80
 05/30/2025   03:54:24   (  -0.00, 140.78) (   0.51, 142.92)  243.86                80
 05/31/2025   16:16:13   (   0.01, 140.79) (   0.73, 137.65)  357.73                80
 06/01/2025   15:54:49   (   0.01, 140.78) (  -0.30, 142.18)  158.74                80
 06/03/2025   04:16:46   (  -0.01, 140.77) (  -0.89, 136.87)  444.42                80
 06/04/2025   04:00:43   (  -0.01, 140.76) (   0.14, 141.39)   72.83                80
 06/06/2025   16:03:48   (   0.02, 140.73) (   0.05, 140.65)    9.23                80