Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 8.  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)
 05/09/2025   03:47:48   (  -0.00, 140.74) (   0.82, 144.53)  430.77                80
 05/10/2025   16:09:38   (   0.00, 140.71) (   0.34, 139.25)  167.75                80
 05/11/2025   15:48:14   (   0.00, 140.69) (  -0.67, 143.77)  350.27                80
 05/13/2025   04:10:13   (  -0.00, 140.66) (  -0.46, 138.45)  251.14                80
 05/14/2025   03:54:09   (   0.00, 140.64) (   0.55, 142.98)  267.31                80
 05/15/2025   16:15:59   (  -0.00, 140.60) (   0.66, 137.71)  330.28                80
 05/16/2025   15:54:35   (  -0.00, 140.58) (  -0.36, 142.23)  188.09                80
 05/18/2025   04:16:32   (   0.01, 140.54) (  -0.83, 136.92)  412.96                80
 05/19/2025   04:00:29   (   0.00, 140.51) (   0.19, 141.45)  106.22                80
 05/20/2025   16:22:19   (   0.02, 140.46) (   0.95, 136.16)  489.26                80
 05/21/2025   16:00:55   (   0.02, 140.43) (  -0.02, 140.70)   30.21                80