Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/06/2020   09:48:32   (  -0.12,-127.90) (  -0.89,-124.49)  389.53                80
 11/07/2020   22:12:49   (   0.10,-127.86) (  -0.33,-129.70)  210.15                80
 11/08/2020   21:51:13   (   0.11,-127.82) (   0.71,-125.12)  307.70                80
 11/10/2020   10:15:21   (  -0.09,-127.75) (   0.50,-130.30)  290.66                80
 11/11/2020   09:53:44   (  -0.11,-127.71) (  -0.53,-125.72)  227.16                80
 11/12/2020   22:18:02   (   0.08,-127.67) (  -0.67,-130.93)  372.79                80
 11/13/2020   21:56:25   (   0.09,-127.62) (   0.37,-126.35)  144.61                80
 11/15/2020   10:20:34   (  -0.06,-127.54) (   0.85,-131.53)  454.82                80
 11/16/2020   09:58:57   (  -0.08,-127.50) (  -0.19,-126.95)   62.27                80
 11/18/2020   22:04:18   (   0.06,-127.39) (   0.03,-127.58)   21.93                80
 11/19/2020   21:42:41   (   0.08,-127.34) (   1.07,-123.00)  494.64                80