Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 7.  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)
 10/09/2025   04:16:41   (   0.01, 140.66) (  -0.80, 136.90)  428.32                80
 10/10/2025   04:00:35   (   0.01, 140.64) (   0.18, 141.44)   91.06                80
 10/12/2025   16:00:55   (  -0.01, 140.66) (  -0.02, 140.72)    7.07                80
 10/15/2025   04:04:03   (   0.01, 140.53) (  -0.13, 139.96)   65.95                80
 10/16/2025   03:47:58   (   0.01, 140.50) (   0.92, 144.49)  454.53                80
 10/17/2025   16:09:43   (  -0.01, 140.51) (   0.27, 139.23)  145.99                80
 10/18/2025   15:48:17   (  -0.01, 140.48) (  -0.72, 143.77)  374.71                80
 10/20/2025   04:10:12   (   0.01, 140.37) (  -0.40, 138.46)  216.47                80
 10/21/2025   03:54:06   (   0.01, 140.32) (   0.59, 143.01)  305.17                80