Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 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)
 10/15/2025   04:04:03   (   0.02, 140.77) (  -0.14, 139.96)   92.33                80
 10/16/2025   03:47:57   (   0.02, 140.78) (   0.85, 144.50)  424.44                80
 10/17/2025   16:09:42   (  -0.03, 140.77) (   0.33, 139.24)  173.88                80
 10/18/2025   15:48:17   (  -0.02, 140.77) (  -0.72, 143.77)  343.43                80
 10/20/2025   04:10:11   (   0.03, 140.77) (  -0.47, 138.48)  260.59                80
 10/21/2025   03:54:05   (   0.02, 140.76) (   0.53, 143.02)  257.30                80
 10/22/2025   16:15:50   (  -0.03, 140.74) (   0.64, 137.76)  339.38                80
 10/23/2025   15:54:23   (  -0.03, 140.74) (  -0.36, 142.30)  178.52                80
 10/25/2025   04:16:18   (   0.03, 140.74) (  -0.82, 137.01)  425.15                80
 10/26/2025   04:00:12   (   0.04, 140.73) (   0.24, 141.54)   93.12                80