Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 4 3.  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   10:02:40   (  -0.25,-127.78) (  -0.24,-127.94)   18.39                80
 04/04/2020   09:41:03   (  -0.26,-127.74) (  -1.22,-123.36)  498.90                80
 04/05/2020   22:05:22   (   0.24,-127.70) (   0.04,-128.58)  100.70                80
 04/06/2020   21:43:46   (   0.25,-127.66) (   1.09,-124.01)  416.67                80
 04/08/2020   10:07:56   (  -0.23,-127.58) (   0.12,-129.20)  183.97                80
 04/09/2020   09:46:20   (  -0.24,-127.53) (  -0.87,-124.61)  332.65                80
 04/10/2020   22:10:38   (   0.22,-127.48) (  -0.31,-129.84)  268.38                80
 04/11/2020   21:49:03   (   0.23,-127.44) (   0.74,-125.27)  248.39                80
 04/13/2020   10:13:13   (  -0.20,-127.35) (   0.46,-130.45)  352.54                80
 04/14/2020   09:51:37   (  -0.22,-127.30) (  -0.53,-125.87)  163.53                80
 04/15/2020   22:15:54   (   0.19,-127.24) (  -0.70,-131.08)  438.78                80
 04/16/2020   21:54:18   (   0.20,-127.19) (   0.35,-126.51)   77.66                80