Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 12.  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   22:18:13   (   0.08,-127.68) (  -0.00,-131.08)  377.94                80
 11/13/2020   21:56:25   (   0.09,-127.64) (   0.39,-126.35)  147.04                80
 11/15/2020   10:20:34   (  -0.06,-127.56) (   0.82,-131.53)  452.12                80
 11/16/2020   09:58:57   (  -0.08,-127.52) (  -0.22,-126.95)   65.38                80
 11/18/2020   22:04:17   (   0.06,-127.42) (   0.01,-127.57)   17.54                80
 11/19/2020   21:42:41   (   0.08,-127.38) (   1.06,-122.99)  499.39                80
 11/21/2020   10:06:49   (  -0.05,-127.29) (   0.16,-128.17)  100.90                80
 11/22/2020   09:45:12   (  -0.07,-127.24) (  -0.88,-123.59)  416.10                80
 11/23/2020   22:09:30   (   0.04,-127.19) (  -0.29,-128.81)  183.79                80
 11/24/2020   21:47:52   (   0.06,-127.14) (   0.69,-124.22)  333.03                80
 11/26/2020   10:12:01   (  -0.03,-127.05) (   0.47,-129.40)  267.74                80