Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 3 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/18/2020   10:05:44   (  -0.31,-128.24) (  -0.23,-128.74)   56.77                80
 03/19/2020   09:44:08   (  -0.31,-128.22) (  -1.21,-124.15)  462.45                80
 03/20/2020   22:05:47   (   0.30,-128.22) (   0.05,-129.39)  133.19                80
 03/21/2020   21:49:31   (   0.30,-128.20) (   1.04,-124.80)  386.24                80
 03/23/2020   10:11:01   (  -0.29,-128.13) (   0.16,-129.99)  212.91                80
 03/24/2020   09:49:25   (  -0.30,-128.11) (  -0.89,-125.42)  305.94                80
 03/25/2020   22:13:44   (   0.28,-128.10) (  -0.31,-130.64)  290.61                80
 03/26/2020   21:54:48   (   0.29,-128.08) (   0.73,-126.07)  228.33                80
 03/28/2020   10:16:19   (  -0.27,-128.01) (   0.47,-131.26)  371.14                80
 03/29/2020   09:54:43   (  -0.28,-127.98) (  -0.57,-126.69)  146.92                80