Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/03/2020   10:02:39   (  -0.25,-127.78) (  -0.21,-127.94)   18.43                80
 04/04/2020   09:41:04   (  -0.26,-127.73) (  -1.26,-123.36)  498.60                80
 04/05/2020   22:05:21   (   0.24,-127.69) (   0.02,-128.58)  101.33                80
 04/06/2020   21:43:46   (   0.25,-127.65) (   1.06,-124.00)  415.95                80
 04/08/2020   10:07:56   (  -0.23,-127.57) (   0.14,-129.19)  184.76                80
 04/09/2020   09:46:21   (  -0.24,-127.53) (  -0.91,-124.62)  331.74                80
 04/10/2020   22:10:38   (   0.22,-127.47) (  -0.33,-129.83)  269.56                80
 04/11/2020   21:49:02   (   0.23,-127.43) (   0.72,-125.26)  247.08                80
 04/13/2020   10:13:13   (  -0.20,-127.34) (   0.49,-130.45)  353.93                80
 04/14/2020   09:51:37   (  -0.22,-127.29) (  -0.56,-125.88)  162.03                80