Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 3 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/23/2020   10:11:01   (  -0.29,-128.12) (   0.12,-130.00)  213.82                80
 03/24/2020   09:49:25   (  -0.30,-128.10) (  -0.87,-125.41)  304.82                80
 03/25/2020   22:13:44   (   0.28,-128.09) (  -0.27,-130.65)  291.84                80
 03/26/2020   21:54:48   (   0.29,-128.06) (   0.71,-126.07)  226.89                80
 03/28/2020   10:16:18   (  -0.27,-127.99) (   0.48,-131.26)  373.14                80
 03/29/2020   09:54:43   (  -0.28,-127.95) (  -0.56,-126.68)  144.72                80
 03/30/2020   22:19:01   (   0.26,-127.93) (  -0.63,-131.91)  453.60                80
 03/31/2020   21:57:25   (   0.27,-127.89) (   0.42,-127.33)   64.26                80
 04/03/2020   10:02:39   (  -0.25,-127.77) (  -0.20,-127.94)   19.58                80
 04/04/2020   09:41:04   (  -0.26,-127.73) (  -1.25,-123.37)  497.34                80