Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 9 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)
 09/13/2025   04:04:33   (   0.02, 140.72) (  -0.21, 139.83)  102.13                80
 09/14/2025   03:48:28   (   0.01, 140.74) (   0.85, 144.35)  411.83                80
 09/15/2025   16:10:15   (  -0.02, 140.85) (   0.40, 139.10)  199.75                80
 09/16/2025   15:48:50   (  -0.02, 140.87) (  -0.66, 143.62)  314.23                80
 09/18/2025   04:10:45   (   0.02, 140.84) (  -0.56, 138.33)  286.58                80
 09/19/2025   03:54:40   (   0.02, 140.86) (   0.49, 142.86)  228.57                80
 09/20/2025   16:16:26   (  -0.03, 140.93) (   0.75, 137.60)  380.12                80
 09/21/2025   15:55:02   (  -0.02, 140.95) (  -0.31, 142.13)  135.24                80
 09/23/2025   04:16:56   (   0.02, 140.91) (  -0.90, 136.84)  464.54                80
 09/24/2025   04:00:51   (   0.02, 140.91) (   0.10, 141.37)   51.71                80
 09/26/2025   16:03:53   (  -0.02, 140.98) (   0.07, 140.64)   39.12                80