Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/12/2019   10:07:45   (   0.09,-128.54) (   0.39,-129.97)  162.31                80
 11/13/2019   09:51:30   (   0.11,-128.54) (  -0.62,-125.39)  359.36                80
 11/14/2019   22:10:29   (  -0.08,-128.49) (  -0.58,-130.62)  243.30                80
 11/15/2019   21:54:13   (  -0.10,-128.49) (   0.44,-126.05)  277.94                80
 11/17/2019   10:13:06   (   0.07,-128.52) (   0.68,-131.26)  311.91                80
 11/18/2019   09:56:50   (   0.08,-128.52) (  -0.33,-126.69)  208.72                80
 11/19/2019   22:15:50   (  -0.05,-128.45) (  -0.85,-131.92)  395.34                80
 11/20/2019   21:59:34   (  -0.06,-128.45) (   0.17,-127.34)  125.22                80
 11/22/2019   10:18:26   (   0.04,-128.48) (   0.96,-132.56)  465.18                80
 11/23/2019   10:02:11   (   0.05,-128.46) (  -0.05,-127.98)   55.14                80
 11/25/2019   22:02:15   (  -0.05,-128.38) (  -0.10,-128.64)   29.25                80