Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 12 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/30/2021   18:43:44   (   0.04, -75.19) (   0.01, -75.30)   13.04                80
 12/31/2021   18:28:01   (   0.03, -75.19) (   1.01, -70.86)  493.73                80
 01/02/2022   06:47:43   (  -0.03, -75.17) (   0.19, -76.25)  122.07                80
 01/03/2022   06:32:00   (  -0.02, -75.17) (  -0.81, -71.80)  384.77                80
 01/04/2022   18:51:49   (   0.03, -75.18) (  -0.45, -77.22)  233.38                80
 01/05/2022   18:36:07   (   0.03, -75.18) (   0.56, -72.77)  274.03                80
 01/07/2022   06:58:28   (  -0.03, -75.19) (   0.66, -78.17)  340.21                80
 01/08/2022   06:37:26   (  -0.03, -75.19) (  -0.35, -73.72)  167.69                80
 01/09/2022   18:59:56   (   0.03, -75.21) (  -0.84, -79.15)  448.71                80
 01/10/2022   18:44:13   (   0.03, -75.23) (   0.12, -74.70)   59.88                80