Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 8 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/19/2020   09:48:16   (  -0.04,-127.93) (  -0.89,-124.05)  442.04                80
 08/20/2020   22:07:14   (   0.04,-127.84) (  -0.25,-129.28)  163.63                80
 08/21/2020   21:50:58   (   0.04,-127.80) (   0.76,-124.70)  354.57                80
 08/23/2020   10:09:48   (  -0.05,-127.78) (   0.40,-129.89)  239.68                80
 08/24/2020   09:53:31   (  -0.04,-127.74) (  -0.56,-125.30)  278.13                80
 08/25/2020   22:12:29   (   0.05,-127.64) (  -0.58,-130.53)  328.69                80
 08/26/2020   21:56:13   (   0.05,-127.60) (   0.44,-125.95)  188.72                80
 08/28/2020   10:15:03   (  -0.06,-127.57) (   0.72,-131.14)  406.57                80
 08/29/2020   09:58:46   (  -0.06,-127.52) (  -0.30,-126.56)  110.56                80
 08/30/2020   22:17:44   (   0.07,-127.41) (  -0.90,-131.78)  497.10                80
 08/31/2020   22:01:27   (   0.07,-127.37) (   0.12,-127.19)   20.07                80