Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 3.  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)
 06/04/2025   04:00:43   (   0.01, 140.76) (   0.17, 141.39)   72.35                80
 06/06/2025   16:03:48   (  -0.01, 140.75) (   0.01, 140.65)   11.38                80
 06/09/2025   04:04:22   (   0.02, 140.72) (  -0.16, 139.86)   97.27                80
 06/10/2025   03:48:17   (   0.02, 140.71) (   0.83, 144.40)  420.06                80
 06/11/2025   16:10:07   (  -0.02, 140.69) (   0.31, 139.11)  179.45                80
 06/12/2025   15:48:42   (  -0.02, 140.68) (  -0.68, 143.65)  337.97                80
 06/14/2025   04:10:39   (   0.02, 140.66) (  -0.51, 138.34)  264.45                80
 06/15/2025   03:54:36   (   0.02, 140.64) (   0.54, 142.86)  253.65                80
 06/16/2025   16:16:24   (  -0.02, 140.61) (   0.63, 137.59)  344.25                80