Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 2 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/08/2020   21:42:09   (  -0.00,-128.00) (   0.95,-123.69)  490.87                80
 02/10/2020   10:03:40   (   0.00,-127.93) (   0.20,-128.89)  108.33                80
 02/11/2020   09:47:24   (  -0.00,-127.90) (  -0.83,-124.31)  409.36                80
 02/12/2020   22:09:03   (   0.00,-127.85) (  -0.38,-129.54)  192.14                80
 02/13/2020   21:47:28   (   0.01,-127.82) (   0.66,-124.97)  325.31                80
 02/15/2020   10:08:57   (  -0.00,-127.74) (   0.55,-130.15)  274.68                80
 02/16/2020   09:52:42   (   0.00,-127.70) (  -0.49,-125.58)  242.69                80
 02/17/2020   22:14:21   (  -0.01,-127.65) (  -0.71,-130.81)  359.30                80
 02/18/2020   21:55:25   (  -0.01,-127.61) (   0.28,-126.22)  157.63                80
 02/20/2020   10:14:15   (   0.00,-127.53) (   0.88,-131.42)  443.55                80
 02/21/2020   09:57:59   (  -0.00,-127.48) (  -0.16,-126.85)   73.26                80