Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 25.  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)
 10/26/2025   04:00:11   (   0.00, 140.76) (   0.16, 141.56)   90.67                80
 10/28/2025   16:00:29   (  -0.01, 140.76) (  -0.02, 140.84)    8.76                80
 10/31/2025   04:03:37   (   0.02, 140.79) (  -0.14, 140.09)   80.65                80
 11/01/2025   03:47:31   (   0.02, 140.79) (   0.87, 144.63)  436.63                80
 11/02/2025   16:09:15   (  -0.02, 140.77) (   0.31, 139.37)  159.80                80
 11/03/2025   15:47:49   (  -0.02, 140.77) (  -0.70, 143.91)  357.80                80
 11/05/2025   04:09:43   (   0.02, 140.79) (  -0.46, 138.62)  247.29                80
 11/06/2025   03:53:36   (   0.02, 140.78) (   0.56, 143.15)  270.41                80
 11/07/2025   16:15:21   (  -0.03, 140.76) (   0.62, 137.90)  325.54                80
 11/08/2025   15:53:54   (  -0.03, 140.75) (  -0.41, 142.44)  192.26                80