Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 10.  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)
 06/11/2025   16:10:06   (  -0.02, 140.77) (   0.35, 139.12)  187.72                80
 06/12/2025   15:48:42   (  -0.02, 140.77) (  -0.64, 143.66)  328.14                80
 06/14/2025   04:10:40   (   0.01, 140.77) (  -0.50, 138.34)  277.02                80
 06/15/2025   03:54:36   (   0.01, 140.77) (   0.48, 142.87)  239.49                80
 06/16/2025   16:16:24   (  -0.01, 140.76) (   0.70, 137.60)  360.52                80
 06/17/2025   15:54:59   (   0.00, 140.76) (  -0.28, 142.14)  156.26                80
 06/19/2025   04:16:58   (   0.00, 140.75) (  -0.86, 136.82)  448.12                80
 06/20/2025   04:00:53   (   0.00, 140.74) (   0.13, 141.35)   69.09                80
 06/22/2025   16:03:58   (  -0.01, 140.71) (  -0.00, 140.60)   12.82                80