Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 8 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/09/2019   10:05:58   (  -0.30,-128.40) (  -0.02,-129.54)  129.84                80
 08/10/2019   09:49:44   (  -0.29,-128.41) (  -1.07,-124.97)  392.48                80
 08/11/2019   22:08:44   (   0.31,-128.40) (  -0.08,-130.22)  207.05                80
 08/12/2019   21:52:29   (   0.31,-128.41) (   0.92,-125.64)  315.20                80
 08/14/2019   10:11:22   (  -0.33,-128.45) (   0.20,-130.86)  273.99                80
 08/15/2019   09:55:07   (  -0.32,-128.46) (  -0.80,-126.28)  247.97                80
 08/16/2019   22:14:07   (   0.34,-128.44) (  -0.35,-131.53)  352.22                80
 08/17/2019   21:57:51   (   0.33,-128.44) (   0.64,-126.95)  169.78                80
 08/19/2019   10:16:45   (  -0.35,-128.49) (   0.47,-132.17)  419.49                80
 08/20/2019   10:00:29   (  -0.34,-128.49) (  -0.52,-127.59)  102.10                80
 08/21/2019   22:19:29   (   0.35,-128.46) (  -0.62,-132.84)  499.10                80