Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 9 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)
 09/15/2025   16:10:15   (  -0.02, 140.82) (   0.35, 139.09)  197.07                80
 09/16/2025   15:48:50   (  -0.02, 140.84) (  -0.65, 143.63)  317.42                80
 09/18/2025   04:10:45   (   0.03, 140.80) (  -0.52, 138.32)  282.19                80
 09/19/2025   03:54:40   (   0.03, 140.81) (   0.48, 142.86)  233.47                80
 09/20/2025   16:16:27   (  -0.03, 140.88) (   0.69, 137.59)  374.74                80
 09/21/2025   15:55:02   (  -0.03, 140.89) (  -0.31, 142.13)  141.13                80
 09/23/2025   04:16:57   (   0.03, 140.84) (  -0.85, 136.83)  457.39                80
 09/24/2025   04:00:51   (   0.03, 140.84) (   0.16, 141.36)   59.34                80
 09/26/2025   16:03:53   (  -0.03, 140.90) (   0.00, 140.63)   30.52                80
 09/27/2025   15:42:28   (  -0.02, 140.91) (  -1.00, 145.16)  486.12                80