Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/15/2022   10:28:04   (  -0.00,-127.48) (   0.15,-128.10)   70.49                80
 12/16/2022   10:12:25   (   0.00,-127.44) (  -0.83,-123.66)  430.97                80
 12/17/2022   22:32:20   (   0.01,-127.31) (  -0.42,-129.09)  203.92                80
 12/18/2022   22:16:42   (   0.01,-127.27) (   0.62,-124.67)  297.32                80
 12/20/2022   10:36:27   (  -0.02,-127.26) (   0.64,-130.06)  319.58                80
 12/21/2022   10:20:47   (  -0.01,-127.21) (  -0.35,-125.62)  181.06                80
 12/22/2022   22:40:43   (   0.01,-127.06) (  -0.89,-131.06)  455.39                80
 12/23/2022   22:25:03   (   0.01,-127.01) (   0.09,-126.62)   44.69                80
 12/26/2022   10:26:30   (  -0.01,-126.93) (   0.12,-127.58)   73.77                80
 12/27/2022   10:10:51   (  -0.00,-126.88) (  -0.87,-123.14)  426.09                80