Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 11 10.  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)
 11/11/2025   04:00:05   (   0.00, 140.79) (   0.21, 141.60)   92.12                80
 11/13/2025   16:00:33   (  -0.01, 140.81) (  -0.02, 140.85)    4.15                80
 11/16/2025   04:03:51   (   0.01, 140.83) (  -0.17, 140.05)   88.95                80
 11/17/2025   03:47:49   (   0.01, 140.83) (   0.85, 144.58)  426.50                80
 11/18/2025   16:09:39   (   0.01, 140.82) (   0.34, 139.30)  173.46                80
 11/19/2025   15:48:16   (   0.01, 140.83) (  -0.68, 143.82)  341.94                80
 11/21/2025   04:10:16   (  -0.01, 140.84) (  -0.56, 138.52)  265.33                80
 11/22/2025   03:54:13   (  -0.01, 140.84) (   0.46, 143.04)  250.50                80
 11/23/2025   16:16:03   (   0.02, 140.82) (   0.71, 137.76)  348.55                80
 11/24/2025   15:54:41   (   0.01, 140.81) (  -0.31, 142.28)  167.26                80