Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 12 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)
 12/13/2023   07:30:23   (  -0.02, -75.21) (   0.73, -78.40)  364.92                80
 12/14/2023   07:14:37   (  -0.02, -75.21) (  -0.32, -73.94)  145.27                80
 12/15/2023   19:34:20   (   0.02, -75.22) (  -0.89, -79.32)  467.79                80
 12/16/2023   19:18:32   (   0.01, -75.22) (   0.10, -74.85)   42.73                80
 12/19/2023   07:22:19   (  -0.02, -75.23) (   0.08, -75.72)   55.03                80
 12/20/2023   07:01:12   (  -0.01, -75.24) (  -0.91, -71.24)  456.10                80
 12/21/2023   19:23:35   (   0.01, -75.26) (  -0.29, -76.63)  155.35                80
 12/22/2023   19:07:48   (   0.01, -75.28) (   0.71, -72.15)  356.28                80
 12/24/2023   07:30:01   (  -0.01, -75.30) (   0.52, -77.49)  250.68                80
 12/25/2023   07:08:54   (   0.00, -75.31) (  -0.54, -73.03)  261.08                80
 12/26/2023   19:31:17   (  -0.00, -75.34) (  -0.71, -78.40)  349.83                80