Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 8 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)
 08/15/2023   09:25:46   (  -0.04,-104.71) (   0.83,-108.47)  429.24                80
 08/16/2023   09:04:42   (  -0.04,-104.72) (  -0.18,-104.02)   79.50                80
 08/18/2023   21:08:48   (   0.05,-104.71) (  -0.00,-104.98)   29.67                80
 08/19/2023   20:53:05   (   0.05,-104.72) (   1.01,-100.52)  479.57                80
 08/21/2023   09:15:24   (  -0.05,-104.76) (   0.19,-105.89)  128.46                80
 08/22/2023   08:54:20   (  -0.05,-104.77) (  -0.83,-101.44)  380.43                80
 08/23/2023   21:16:49   (   0.05,-104.75) (  -0.42,-106.84)  238.30                80
 08/24/2023   21:01:05   (   0.05,-104.76) (   0.60,-102.39)  270.48                80
 08/26/2023   09:23:25   (  -0.06,-104.79) (   0.59,-107.76)  337.99                80
 08/27/2023   09:02:21   (  -0.06,-104.80) (  -0.43,-103.31)  170.32                80
 08/28/2023   21:24:49   (   0.07,-104.77) (  -0.81,-108.71)  449.50                80