Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/12/2020   22:18:01   (   0.08,-127.68) (  -0.67,-130.93)  370.38                80
 11/13/2020   21:56:25   (   0.09,-127.64) (   0.37,-126.35)  147.37                80
 11/15/2020   10:20:33   (  -0.06,-127.56) (   0.84,-131.52)  451.81                80
 11/16/2020   09:58:57   (  -0.08,-127.52) (  -0.20,-126.94)   65.65                80
 11/18/2020   22:04:18   (   0.06,-127.42) (   0.05,-127.58)   17.33                80
 11/19/2020   21:42:41   (   0.08,-127.37) (   1.09,-123.00)  499.70                80
 11/21/2020   10:06:49   (  -0.05,-127.29) (   0.12,-128.17)  100.63                80
 11/22/2020   09:45:13   (  -0.07,-127.24) (  -0.92,-123.59)  416.38                80
 11/23/2020   22:09:29   (   0.04,-127.19) (  -0.32,-128.80)  183.50                80
 11/24/2020   21:47:53   (   0.06,-127.14) (   0.73,-124.22)  333.29                80