Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/05/2020   10:10:08   (  -0.10,-127.94) (   0.17,-129.06)  128.85                80
 11/06/2020   09:48:31   (  -0.12,-127.90) (  -0.86,-124.48)  389.46                80
 11/07/2020   22:12:50   (   0.10,-127.86) (  -0.30,-129.71)  210.46                80
 11/08/2020   21:51:13   (   0.11,-127.82) (   0.74,-125.13)  307.34                80
 11/10/2020   10:15:21   (  -0.09,-127.75) (   0.47,-130.31)  290.97                80
 11/11/2020   09:53:45   (  -0.11,-127.71) (  -0.56,-125.72)  226.78                80
 11/12/2020   22:18:02   (   0.08,-127.66) (  -0.65,-130.94)  373.39                80
 11/13/2020   21:56:26   (   0.09,-127.62) (   0.39,-126.36)  143.95                80
 11/15/2020   10:20:34   (  -0.06,-127.54) (   0.83,-131.53)  455.45                80
 11/16/2020   09:58:58   (  -0.08,-127.49) (  -0.20,-126.95)   61.56                80
 11/18/2020   22:04:18   (   0.06,-127.38) (   0.04,-127.59)   23.01                80