Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 7 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/09/2020   22:03:02   (  -0.03,-128.27) (  -0.04,-128.39)   14.32                80
 07/12/2020   10:08:16   (   0.03,-128.36) (   0.17,-129.01)   73.65                80
 07/13/2020   09:46:39   (   0.02,-128.37) (  -0.83,-124.42)  449.53                80
 07/14/2020   22:08:17   (  -0.02,-128.33) (  -0.35,-129.65)  150.51                80
 07/15/2020   21:52:02   (  -0.02,-128.35) (   0.72,-125.08)  372.57                80
 07/17/2020   10:13:32   (   0.01,-128.42) (   0.43,-130.27)  211.66                80
 07/18/2020   09:51:57   (   0.01,-128.42) (  -0.63,-125.70)  310.57                80
 07/19/2020   22:13:34   (   0.00,-128.37) (  -0.60,-130.92)  291.38                80
 07/20/2020   21:57:19   (   0.01,-128.37) (   0.47,-126.35)  230.71                80