Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 2 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/04/2020   10:17:17   (  -0.03,-128.13) (   0.91,-132.20)  463.64                80
 02/05/2020   10:01:02   (  -0.03,-128.10) (  -0.13,-127.62)   54.84                80
 02/07/2020   22:03:46   (  -0.01,-128.03) (  -0.05,-128.27)   27.52                80
 02/08/2020   21:42:09   (  -0.01,-127.99) (   0.93,-123.69)  490.24                80
 02/10/2020   10:03:39   (   0.01,-127.93) (   0.23,-128.88)  109.05                80
 02/11/2020   09:47:24   (   0.00,-127.89) (  -0.81,-124.31)  408.52                80
 02/12/2020   22:09:03   (  -0.00,-127.84) (  -0.39,-129.54)  193.35                80
 02/13/2020   21:47:28   (   0.00,-127.81) (   0.64,-124.96)  323.96                80
 02/15/2020   10:08:58   (   0.00,-127.73) (   0.52,-130.16)  276.11                80
 02/16/2020   09:52:42   (   0.00,-127.69) (  -0.46,-125.57)  241.10                80