Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 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)
 06/15/2025   03:54:36   (   0.02, 140.77) (   0.49, 142.87)  239.88                80
 06/16/2025   16:16:24   (  -0.02, 140.76) (   0.70, 137.60)  360.46                80
 06/17/2025   15:54:59   (  -0.02, 140.76) (  -0.29, 142.13)  156.45                80
 06/19/2025   04:16:58   (   0.02, 140.74) (  -0.85, 136.82)  447.23                80
 06/20/2025   04:00:53   (   0.02, 140.73) (   0.14, 141.35)   70.14                80
 06/22/2025   16:03:58   (  -0.03, 140.70) (  -0.02, 140.60)   11.90                80
 06/25/2025   04:04:31   (   0.03, 140.68) (  -0.18, 139.82)   97.71                80
 06/26/2025   03:48:27   (   0.03, 140.66) (   0.87, 144.34)  420.28                80
 06/27/2025   16:10:16   (  -0.04, 140.63) (   0.29, 139.07)  177.32                80
 06/28/2025   15:48:51   (  -0.03, 140.61) (  -0.71, 143.60)  341.18                80