Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/10/2019   21:48:52   (  -0.12,-128.49) (   0.69,-124.75)  425.73                80
 11/12/2019   10:07:45   (   0.09,-128.54) (   0.42,-129.96)  162.45                80
 11/13/2019   09:51:29   (   0.11,-128.54) (  -0.60,-125.39)  359.12                80
 11/14/2019   22:10:29   (  -0.08,-128.49) (  -0.54,-130.63)  244.00                80
 11/15/2019   21:54:13   (  -0.10,-128.48) (   0.42,-126.04)  277.17                80
 11/17/2019   10:13:05   (   0.07,-128.52) (   0.69,-131.26)  312.47                80
 11/18/2019   09:56:50   (   0.08,-128.51) (  -0.32,-126.68)  208.11                80
 11/19/2019   22:15:49   (  -0.05,-128.44) (  -0.86,-131.92)  396.37                80
 11/20/2019   21:59:34   (  -0.07,-128.43) (   0.16,-127.34)  124.12                80
 11/22/2019   10:18:26   (   0.04,-128.47) (   0.96,-132.56)  466.08                80
 11/23/2019   10:02:10   (   0.05,-128.45) (  -0.06,-127.98)   54.19                80