Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 2 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/10/2020   10:03:47   (  -0.36,-128.25) (  -0.22,-128.98)   83.01                80
 02/11/2020   09:47:30   (  -0.35,-128.28) (  -1.19,-124.39)  442.36                80
 02/12/2020   22:06:32   (   0.37,-128.33) (   0.10,-129.65)  149.23                80
 02/13/2020   21:50:15   (   0.36,-128.36) (   1.08,-125.06)  376.08                80
 02/15/2020   10:09:06   (  -0.37,-128.41) (   0.02,-130.27)  211.52                80
 02/16/2020   09:52:50   (  -0.36,-128.44) (  -0.96,-125.68)  313.34                80
 02/17/2020   22:11:50   (   0.37,-128.48) (  -0.19,-130.93)  279.17                80
 02/18/2020   21:55:35   (   0.36,-128.50) (   0.85,-126.35)  245.51                80
 02/20/2020   10:14:25   (  -0.36,-128.54) (   0.31,-131.55)  342.56                80
 02/21/2020   09:58:10   (  -0.36,-128.57) (  -0.73,-126.97)  181.78                80
 02/22/2020   22:17:09   (   0.36,-128.60) (  -0.46,-132.20)  411.37                80