Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/07/2019   10:02:24   (   0.12,-128.52) (   0.13,-128.67)   17.14                80
 11/09/2019   22:05:08   (  -0.11,-128.48) (  -0.32,-129.33)   96.99                80
 11/10/2019   21:48:52   (  -0.12,-128.49) (   0.69,-124.75)  425.21                80
 11/12/2019   10:07:45   (   0.10,-128.54) (   0.43,-129.96)  162.40                80
 11/13/2019   09:51:29   (   0.11,-128.54) (  -0.59,-125.39)  359.21                80
 11/14/2019   22:10:29   (  -0.08,-128.49) (  -0.54,-130.63)  244.38                80
 11/15/2019   21:54:14   (  -0.10,-128.48) (   0.47,-126.06)  276.77                80
 11/17/2019   10:13:05   (   0.07,-128.52) (   0.71,-131.26)  312.43                80
 11/18/2019   09:56:50   (   0.08,-128.51) (  -0.30,-126.68)  208.20                80