Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2023   21:23:48   (  -0.01,-104.66) (  -0.46,-106.67)  228.35                80
 12/21/2023   21:08:00   (  -0.01,-104.67) (   0.54,-102.19)  282.07                80
 12/23/2023   09:30:13   (   0.01,-104.70) (   0.68,-107.53)  322.99                80
 12/24/2023   09:09:07   (   0.02,-104.71) (  -0.38,-103.07)  187.25                80
 12/25/2023   21:31:29   (  -0.02,-104.67) (  -0.87,-108.44)  429.92                80
 12/26/2023   21:15:42   (  -0.02,-104.67) (   0.14,-103.97)   80.44                80
 12/29/2023   09:19:28   (   0.02,-104.71) (   0.05,-104.84)   13.87                80
 12/30/2023   08:58:20   (   0.02,-104.72) (  -0.96,-100.36)  496.48                80
 12/31/2023   21:23:22   (  -0.02,-104.69) (  -0.27,-105.74)  120.16                80
 01/01/2024   21:04:55   (  -0.02,-104.69) (   0.75,-101.26)  390.59                80