Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 6.  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)
 05/08/2025   04:03:51   (  -0.03, 140.76) (  -0.19, 140.00)   86.35                80
 05/09/2025   03:47:48   (  -0.03, 140.75) (   0.83, 144.53)  430.51                80
 05/10/2025   16:09:38   (   0.03, 140.73) (   0.34, 139.24)  169.20                80
 05/11/2025   15:48:15   (   0.03, 140.72) (  -0.67, 143.77)  347.78                80
 05/13/2025   04:10:12   (  -0.03, 140.71) (  -0.52, 138.46)  255.77                80
 05/14/2025   03:54:08   (  -0.02, 140.70) (   0.50, 142.99)  261.45                80
 05/15/2025   16:15:59   (   0.02, 140.67) (   0.66, 137.70)  337.54                80
 05/16/2025   15:54:35   (   0.02, 140.66) (  -0.36, 142.23)  179.92                80
 05/18/2025   04:16:32   (  -0.02, 140.64) (  -0.83, 136.92)  423.22                80
 05/19/2025   04:00:28   (  -0.03, 140.62) (   0.13, 141.46)   94.90                80