Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 11 7.  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   10:02:23   (   0.12,-128.52) (   0.16,-128.67)   17.06                80
 11/09/2019   22:05:08   (  -0.10,-128.48) (  -0.30,-129.33)   96.92                80
 11/10/2019   21:48:53   (  -0.12,-128.49) (   0.72,-124.76)  425.18                80
 11/12/2019   10:07:45   (   0.09,-128.54) (   0.40,-129.97)  162.67                80
 11/13/2019   09:51:30   (   0.11,-128.54) (  -0.61,-125.39)  358.89                80
 11/14/2019   22:10:29   (  -0.08,-128.48) (  -0.58,-130.63)  244.64                80
 11/15/2019   21:54:14   (  -0.10,-128.48) (   0.43,-126.05)  276.45                80
 11/17/2019   10:13:06   (   0.07,-128.52) (   0.70,-131.26)  312.93                80
 11/18/2019   09:56:50   (   0.08,-128.51) (  -0.32,-126.69)  207.61                80
 11/19/2019   22:15:51   (  -0.05,-128.44) (  -0.81,-131.93)  397.25                80
 11/20/2019   21:59:34   (  -0.07,-128.43) (   0.15,-127.34)  123.19                80