Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 11 22.  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)
 11/23/2025   16:16:03   (   0.02, 140.77) (   0.70, 137.76)  342.57                80
 11/24/2025   15:54:40   (   0.01, 140.78) (  -0.32, 142.29)  171.91                80
 11/26/2025   04:16:40   (  -0.01, 140.80) (  -0.90, 136.98)  436.82                80
 11/27/2025   04:00:37   (  -0.01, 140.81) (   0.13, 141.50)   78.32                80
 11/29/2025   16:03:45   (   0.00, 140.80) (   0.00, 140.74)    6.14                80
 12/02/2025   04:07:01   (  -0.01, 140.81) (  -0.23, 139.96)   97.59                80
 12/03/2025   03:45:38   (  -0.01, 140.81) (   0.80, 144.48)  418.38                80
 12/04/2025   16:10:09   (   0.02, 140.79) (   0.37, 139.20)  180.55                80
 12/05/2025   15:48:46   (   0.02, 140.79) (  -0.67, 143.72)  335.26                80