Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 6 12.  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)
 06/14/2025   04:10:40   (   0.02, 140.77) (  -0.53, 138.34)  276.84                80
 06/15/2025   03:54:36   (   0.02, 140.77) (   0.51, 142.87)  239.69                80
 06/16/2025   16:16:24   (  -0.02, 140.76) (   0.67, 137.60)  360.50                80
 06/17/2025   15:55:00   (  -0.01, 140.76) (  -0.32, 142.13)  156.30                80
 06/19/2025   04:16:57   (   0.02, 140.75) (  -0.89, 136.82)  447.80                80
 06/20/2025   04:00:54   (   0.01, 140.74) (   0.16, 141.34)   69.47                80
 06/22/2025   16:01:18   (  -0.02, 140.71) (   0.02, 140.61)   12.58                80
 06/25/2025   04:04:31   (   0.03, 140.69) (  -0.17, 139.82)   98.85                80
 06/26/2025   03:48:27   (   0.02, 140.67) (   0.82, 144.35)  419.02                80