Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 12 12.  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   07:30:24   (  -0.02, -75.21) (   0.68, -78.41)  364.98                80
 12/14/2023   07:14:36   (  -0.01, -75.21) (  -0.30, -73.94)  145.10                80
 12/15/2023   19:34:20   (   0.02, -75.21) (  -0.90, -79.32)  468.14                80
 12/16/2023   19:18:32   (   0.01, -75.22) (   0.08, -74.84)   42.30                80
 12/19/2023   07:22:19   (  -0.01, -75.23) (   0.11, -75.71)   55.69                80
 12/20/2023   07:01:13   (  -0.01, -75.24) (  -0.94, -71.25)  455.35                80
 12/21/2023   19:23:35   (   0.01, -75.26) (  -0.32, -76.62)  156.36                80
 12/22/2023   19:07:48   (   0.01, -75.27) (   0.73, -72.16)  355.20                80
 12/24/2023   07:30:02   (  -0.00, -75.29) (   0.50, -77.50)  251.87                80
 12/25/2023   07:08:54   (   0.00, -75.30) (  -0.49, -73.02)  259.75                80