Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 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)
 10/12/2025   16:03:35   (  -0.02, 140.74) (  -0.03, 140.72)    3.19                80
 10/15/2025   04:04:03   (   0.02, 140.77) (  -0.18, 139.97)   91.82                80
 10/16/2025   03:47:57   (   0.02, 140.77) (   0.87, 144.50)  425.28                80
 10/17/2025   16:09:42   (  -0.03, 140.75) (   0.31, 139.24)  172.40                80
 10/18/2025   15:48:16   (  -0.03, 140.75) (  -0.68, 143.78)  345.26                80
 10/20/2025   04:10:10   (   0.03, 140.75) (  -0.51, 138.49)  258.46                80
 10/21/2025   03:54:05   (   0.02, 140.74) (   0.54, 143.02)  259.80                80
 10/22/2025   16:15:50   (  -0.02, 140.71) (   0.62, 137.76)  336.19                80
 10/23/2025   15:54:24   (  -0.02, 140.70) (  -0.37, 142.30)  182.12                80
 10/25/2025   04:16:18   (   0.02, 140.70) (  -0.81, 137.01)  421.12                80