Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 28.  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)
 04/29/2025   16:15:39   (   0.02, 140.77) (   0.71, 137.80)  338.93                80
 04/30/2025   15:54:16   (   0.03, 140.78) (  -0.35, 142.32)  176.60                80
 05/02/2025   04:16:13   (  -0.02, 140.78) (  -0.87, 137.02)  429.59                80
 05/03/2025   04:00:10   (  -0.03, 140.78) (   0.13, 141.54)   86.49                80
 05/05/2025   16:00:37   (   0.03, 140.76) (   0.04, 140.79)    3.21                80
 05/08/2025   04:03:51   (  -0.03, 140.74) (  -0.22, 140.01)   83.87                80
 05/09/2025   03:47:47   (  -0.04, 140.72) (   0.79, 144.53)  433.73                80
 05/10/2025   16:09:37   (   0.03, 140.69) (   0.37, 139.25)  164.53                80
 05/11/2025   15:48:14   (   0.03, 140.67) (  -0.64, 143.78)  353.16                80