Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 8 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/21/2023   09:15:22   (   0.01,-104.72) (   0.29,-105.87)  131.39                80
 08/22/2023   08:54:19   (   0.01,-104.72) (  -0.72,-101.41)  376.69                80
 08/23/2023   21:16:47   (  -0.01,-104.69) (  -0.52,-106.82)  243.66                80
 08/24/2023   21:01:03   (  -0.02,-104.68) (   0.50,-102.36)  264.41                80
 08/26/2023   09:23:23   (   0.02,-104.71) (   0.69,-107.74)  344.38                80
 08/27/2023   09:02:18   (   0.03,-104.71) (  -0.28,-103.27)  163.28                80
 08/28/2023   21:24:47   (  -0.03,-104.66) (  -0.96,-108.68)  457.99                80
 08/29/2023   21:09:03   (  -0.03,-104.66) (   0.07,-104.22)   49.96                80
 09/01/2023   09:12:58   (   0.04,-104.69) (   0.14,-105.13)   50.21                80
 09/02/2023   08:51:54   (   0.04,-104.69) (  -0.89,-100.68)  457.78                80
 09/03/2023   21:14:22   (  -0.04,-104.65) (  -0.39,-106.07)  163.00                80