Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 3 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/06/2023   09:03:59   (  -0.01,-104.71) (   0.12,-105.42)   80.69                80
 03/07/2023   08:42:58   (  -0.01,-104.71) (  -0.87,-100.97)  426.56                80
 03/08/2023   21:05:29   (   0.01,-104.72) (  -0.34,-106.40)  190.92                80
 03/09/2023   20:49:47   (   0.01,-104.72) (   0.66,-101.95)  316.64                80
 03/11/2023   09:12:11   (  -0.01,-104.73) (   0.56,-107.34)  297.19                80
 03/12/2023   08:51:09   (  -0.01,-104.73) (  -0.45,-102.89)  209.97                80
 03/13/2023   21:13:39   (   0.01,-104.72) (  -0.81,-108.30)  408.44                80
 03/14/2023   20:57:58   (   0.01,-104.72) (   0.20,-103.86)   98.56                80
 03/17/2023   09:02:00   (  -0.02,-104.72) (  -0.01,-104.81)    9.10                80
 03/18/2023   08:40:58   (  -0.02,-104.72) (  -1.03,-100.36)  497.77                80