Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 11 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)
 11/10/2025   04:16:07   (  -0.00, 140.80) (  -0.86, 137.09)  424.12                80
 11/11/2025   04:00:05   (   0.01, 140.81) (   0.20, 141.60)   89.86                80
 11/13/2025   16:00:33   (  -0.01, 140.82) (  -0.01, 140.85)    2.85                80
 11/16/2025   04:03:51   (   0.01, 140.84) (  -0.17, 140.05)   90.25                80
 11/17/2025   03:47:48   (   0.01, 140.84) (   0.85, 144.58)  425.38                80
 11/18/2025   16:09:39   (   0.00, 140.83) (   0.34, 139.30)  173.95                80
 11/19/2025   15:48:16   (   0.00, 140.83) (  -0.68, 143.82)  341.66                80
 11/21/2025   04:10:15   (  -0.01, 140.84) (  -0.55, 138.51)  265.62                80
 11/22/2025   03:54:13   (  -0.01, 140.84) (   0.47, 143.04)  250.39                80