Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 2 23.  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)
 02/24/2025   16:16:18   (   0.01, 140.78) (   0.72, 137.70)  351.54                80
 02/25/2025   15:54:54   (   0.01, 140.77) (  -0.34, 142.22)  165.07                80
 02/27/2025   04:16:51   (  -0.02, 140.76) (  -0.86, 136.91)  438.18                80
 02/28/2025   03:58:07   (  -0.01, 140.75) (   0.15, 141.44)   79.04                80
 03/02/2025   16:03:50   (   0.01, 140.72) (   0.03, 140.70)    3.32                80
 03/05/2025   04:07:03   (  -0.01, 140.68) (  -0.20, 139.92)   87.15                80
 03/06/2025   03:45:38   (  -0.01, 140.66) (   0.82, 144.45)  430.78                80
 03/07/2025   16:10:05   (   0.01, 140.64) (   0.35, 139.18)  167.29                80
 03/08/2025   15:48:41   (   0.01, 140.63) (  -0.67, 143.71)  350.88                80