Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 5 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/25/2020   10:17:37   (  -0.03,-128.23) (   0.70,-131.41)  362.38                80
 05/26/2020   09:56:02   (  -0.04,-128.21) (  -0.36,-126.83)  157.25                80
 05/27/2020   22:20:20   (   0.02,-128.17) (  -0.86,-132.05)  442.95                80
 05/28/2020   21:58:44   (   0.03,-128.15) (   0.20,-127.48)   76.86                80
 05/31/2020   10:01:17   (  -0.02,-128.12) (  -0.02,-128.08)    3.74                80
 06/02/2020   22:06:40   (   0.01,-128.04) (  -0.14,-128.73)   78.67                80
 06/03/2020   21:45:04   (   0.02,-128.02) (   0.86,-124.15)  440.46                80
 06/05/2020   10:09:13   (  -0.00,-128.00) (   0.32,-129.33)  152.94                80
 06/06/2020   09:47:37   (  -0.02,-127.97) (  -0.74,-124.76)  365.46                80