Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 8 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/04/2019   10:00:35   (  -0.27,-128.33) (  -0.27,-128.23)   11.18                80
 08/06/2019   22:03:21   (   0.28,-128.34) (   0.17,-128.91)   63.74                80
 08/07/2019   21:47:06   (   0.28,-128.36) (   1.16,-124.33)  459.23                80
 08/09/2019   10:05:59   (  -0.30,-128.41) (  -0.05,-129.55)  129.85                80
 08/10/2019   09:49:43   (  -0.29,-128.42) (  -1.04,-124.97)  392.60                80
 08/11/2019   22:08:44   (   0.31,-128.41) (  -0.11,-130.21)  206.29                80
 08/12/2019   21:52:29   (   0.31,-128.42) (   0.94,-125.65)  316.08                80
 08/14/2019   10:11:23   (  -0.33,-128.46) (   0.18,-130.87)  273.41                80
 08/15/2019   09:55:07   (  -0.32,-128.47) (  -0.81,-126.29)  248.71                80
 08/16/2019   22:14:07   (   0.34,-128.45) (  -0.33,-131.53)  350.77                80