Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 4 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/18/2020   10:18:31   (  -0.17,-127.98) (   0.70,-131.73)  428.32                80
 04/19/2020   09:56:56   (  -0.18,-128.00) (  -0.35,-127.16)   95.87                80
 04/20/2020   22:21:14   (   0.16,-128.04) (  -0.83,-132.38)  495.35                80
 04/21/2020   21:59:38   (   0.17,-128.07) (   0.22,-127.81)   28.99                80
 04/24/2020   10:04:53   (  -0.16,-128.13) (  -0.08,-128.43)   34.56                80
 04/25/2020   09:43:18   (  -0.18,-128.15) (  -1.13,-123.86)  488.80                80
 04/26/2020   22:07:36   (   0.15,-128.17) (  -0.04,-129.08)  104.01                80
 04/27/2020   21:46:01   (   0.16,-128.18) (   1.01,-124.51)  419.31                80
 04/29/2020   10:10:11   (  -0.13,-128.21) (   0.18,-129.70)  169.25                80
 04/30/2020   09:48:34   (  -0.15,-128.22) (  -0.82,-125.12)  353.29                80