Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 10 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/15/2020   10:05:31   (  -0.14,-128.39) (  -0.08,-128.70)   35.10                80
 10/16/2020   09:49:14   (  -0.14,-128.38) (  -1.11,-124.12)  486.11                80
 10/17/2020   22:10:53   (   0.13,-128.36) (  -0.08,-129.34)  112.32                80
 10/18/2020   21:49:16   (   0.14,-128.34) (   0.96,-124.76)  408.25                80
 10/20/2020   10:13:24   (  -0.13,-128.33) (   0.24,-129.94)  184.15                80
 10/21/2020   09:51:48   (  -0.14,-128.31) (  -0.79,-125.36)  336.22                80
 10/22/2020   22:16:06   (   0.13,-128.28) (  -0.38,-130.59)  262.92                80
 10/23/2020   21:54:30   (   0.14,-128.26) (   0.65,-126.01)  256.98                80
 10/25/2020   10:18:38   (  -0.13,-128.24) (   0.55,-131.18)  336.37                80
 10/26/2020   09:57:02   (  -0.14,-128.22) (  -0.49,-126.60)  183.75                80