Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 2 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/15/2020   10:09:05   (  -0.37,-128.36) (   0.08,-130.26)  216.65                80
 02/16/2020   09:52:50   (  -0.36,-128.38) (  -0.95,-125.68)  306.75                80
 02/17/2020   22:11:50   (   0.37,-128.41) (  -0.19,-130.92)  285.95                80
 02/18/2020   21:55:35   (   0.36,-128.43) (   0.84,-126.35)  237.29                80
 02/20/2020   10:14:25   (  -0.36,-128.43) (   0.32,-131.55)  355.00                80
 02/21/2020   09:58:09   (  -0.36,-128.44) (  -0.66,-126.96)  167.91                80
 02/22/2020   22:17:09   (   0.36,-128.47) (  -0.48,-132.20)  425.48                80
 02/23/2020   22:00:53   (   0.36,-128.48) (   0.56,-127.63)   97.44                80
 02/25/2020   10:22:24   (  -0.36,-128.48) (   0.61,-132.82)  494.84                80
 02/26/2020   10:00:48   (  -0.36,-128.49) (  -0.42,-128.25)   27.70                80