Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 2 20.  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)
 02/22/2025   04:10:34   (  -0.00, 140.78) (  -0.52, 138.43)  267.37                80
 02/23/2025   03:54:30   (  -0.00, 140.78) (   0.47, 142.97)  248.86                80
 02/24/2025   16:16:18   (   0.01, 140.78) (   0.69, 137.69)  351.90                80
 02/25/2025   15:54:54   (   0.00, 140.78) (  -0.31, 142.22)  164.54                80
 02/27/2025   04:16:51   (  -0.01, 140.76) (  -0.89, 136.91)  439.31                80
 02/28/2025   04:00:48   (  -0.00, 140.75) (   0.17, 141.43)   77.81                80
 03/02/2025   16:03:50   (   0.00, 140.73) (   0.02, 140.70)    4.08                80
 03/05/2025   04:04:23   (  -0.00, 140.69) (  -0.19, 139.91)   89.20                80
 03/06/2025   03:48:19   (  -0.00, 140.68) (   0.83, 144.44)  428.59                80