Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 9 11.  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)
 09/11/2025   15:42:38   (   0.01, 140.76) (  -0.97, 145.12)  497.97                80
 09/13/2025   04:04:33   (  -0.00, 140.73) (  -0.19, 139.82)  103.12                80
 09/14/2025   03:48:28   (  -0.00, 140.72) (   0.80, 144.36)  414.34                80
 09/15/2025   16:10:15   (  -0.00, 140.73) (   0.38, 139.09)  186.41                80
 09/16/2025   15:48:50   (  -0.00, 140.72) (  -0.68, 143.62)  331.33                80
 09/18/2025   04:10:45   (   0.00, 140.68) (  -0.54, 138.33)  268.73                80
 09/19/2025   03:54:40   (   0.00, 140.66) (   0.52, 142.85)  249.97                80
 09/20/2025   16:16:28   (  -0.00, 140.64) (   0.66, 137.58)  348.24                80
 09/21/2025   15:55:02   (  -0.00, 140.62) (  -0.34, 142.12)  170.85                80
 09/23/2025   04:16:57   (   0.00, 140.57) (  -0.82, 136.82)  427.71                80
 09/24/2025   04:00:52   (   0.00, 140.55) (   0.19, 141.35)   91.99                80