Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 2 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/05/2020   10:01:02   (  -0.03,-128.10) (  -0.15,-127.62)   54.91                80
 02/07/2020   22:03:46   (   0.01,-128.03) (  -0.04,-128.28)   27.74                80
 02/08/2020   21:42:09   (  -0.00,-128.00) (   0.93,-123.69)  490.37                80
 02/10/2020   10:03:40   (   0.00,-127.93) (   0.23,-128.88)  108.88                80
 02/11/2020   09:47:24   (   0.00,-127.90) (  -0.80,-124.31)  408.68                80
 02/12/2020   22:09:05   (   0.00,-127.85) (  -0.36,-129.55)  193.19                80
 02/13/2020   21:47:29   (   0.01,-127.81) (   0.67,-124.97)  324.13                80
 02/15/2020   10:08:58   (  -0.00,-127.74) (   0.56,-130.16)  275.96                80
 02/16/2020   09:52:43   (   0.00,-127.70) (  -0.47,-125.58)  241.25                80
 02/17/2020   22:14:23   (  -0.01,-127.64) (  -0.69,-130.82)  361.16                80