Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 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)
 11/07/2020   22:12:49   (   0.10,-127.86) (  -0.31,-129.71)  209.90                80
 11/08/2020   21:51:13   (   0.11,-127.82) (   0.73,-125.13)  308.00                80
 11/10/2020   10:15:21   (  -0.09,-127.75) (   0.48,-130.30)  290.37                80
 11/11/2020   09:53:45   (  -0.11,-127.72) (  -0.56,-125.72)  227.50                80
 11/12/2020   22:18:02   (   0.08,-127.67) (  -0.64,-130.94)  372.23                80
 11/13/2020   21:56:26   (   0.09,-127.63) (   0.40,-126.36)  145.24                80
 11/15/2020   10:20:34   (  -0.06,-127.55) (   0.82,-131.53)  454.22                80
 11/16/2020   09:58:57   (  -0.08,-127.50) (  -0.22,-126.95)   62.97                80
 11/18/2020   22:04:17   (   0.06,-127.40) (   0.01,-127.58)   20.93                80
 11/19/2020   21:42:41   (   0.08,-127.35) (   1.05,-123.00)  495.65                80