Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 2 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/15/2023   20:53:35   (  -0.04,-104.69) (   0.34,-103.13)  178.65                80
 02/17/2023   09:15:59   (   0.04,-104.67) (   0.89,-108.52)  438.23                80
 02/18/2023   08:54:58   (   0.05,-104.66) (  -0.08,-104.07)   67.92                80
 02/20/2023   20:59:09   (  -0.05,-104.67) (  -0.16,-105.04)   43.47                80
 02/21/2023   20:43:28   (  -0.05,-104.67) (   0.88,-100.61)  463.26                80
 02/23/2023   09:05:53   (   0.05,-104.66) (   0.34,-106.00)  152.62                80
 02/24/2023   08:44:51   (   0.05,-104.66) (  -0.64,-101.55)  354.08                80
 02/25/2023   21:07:22   (  -0.06,-104.67) (  -0.59,-106.97)  263.22                80
 02/26/2023   20:51:41   (  -0.06,-104.67) (   0.40,-102.52)  243.71                80
 02/28/2023   09:14:05   (   0.07,-104.66) (   0.80,-107.92)  371.78                80