Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/16/2020   18:32:33   (   0.04, -75.19) (  -0.03, -75.55)   40.54                80
 09/17/2020   18:16:16   (   0.04, -75.20) (   1.00, -70.97)  482.38                80
 09/19/2020   06:37:46   (  -0.04, -75.20) (   0.18, -76.16)  109.42                80
 09/20/2020   06:16:09   (  -0.04, -75.21) (  -0.85, -71.58)  413.68                80
 09/21/2020   18:37:47   (   0.04, -75.24) (  -0.32, -76.80)  178.87                80
 09/22/2020   18:21:31   (   0.04, -75.25) (   0.70, -72.22)  344.43                80
 09/24/2020   06:43:00   (  -0.05, -75.25) (   0.47, -77.41)  246.69                80
 09/25/2020   06:21:25   (  -0.05, -75.26) (  -0.62, -72.84)  276.82                80
 09/26/2020   18:43:03   (   0.06, -75.30) (  -0.55, -78.07)  315.01                80
 09/27/2020   18:26:47   (   0.06, -75.32) (   0.48, -73.49)  209.10                80
 09/29/2020   06:48:16   (  -0.06, -75.34) (   0.69, -78.68)  380.24                80