Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 11 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/14/2020   18:17:02   (  -0.01, -75.17) (   0.93, -70.92)  484.18                80
 11/16/2020   06:38:32   (   0.01, -75.12) (   0.23, -76.11)  112.53                80
 11/17/2020   06:16:55   (   0.01, -75.10) (  -0.81, -71.53)  407.45                80
 11/18/2020   18:38:32   (  -0.01, -75.08) (  -0.38, -76.74)  189.56                80
 11/19/2020   18:22:16   (  -0.01, -75.06) (   0.66, -72.16)  330.93                80
 11/21/2020   06:43:45   (   0.01, -75.03) (   0.50, -77.35)  264.48                80
 11/22/2020   06:22:08   (   0.01, -75.01) (  -0.48, -72.76)  256.38                80
 11/23/2020   18:43:45   (  -0.00, -75.01) (  -0.70, -77.98)  339.22                80
 11/24/2020   18:27:29   (  -0.00, -75.00) (   0.35, -73.40)  182.36                80
 11/26/2020   06:48:58   (   0.00, -74.98) (   0.82, -78.58)  411.20                80
 11/27/2020   06:27:21   (   0.00, -74.97) (  -0.22, -74.00)  110.51                80