Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 6 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/03/2020   21:45:04   (   0.02,-128.04) (   0.90,-124.15)  443.51                80
 06/05/2020   10:09:13   (  -0.00,-128.03) (   0.28,-129.34)  149.58                80
 06/06/2020   09:47:37   (  -0.02,-128.00) (  -0.73,-124.76)  369.10                80
 06/07/2020   22:09:16   (  -0.00,-127.94) (  -0.43,-129.99)  233.23                80
 06/08/2020   21:53:00   (   0.01,-127.91) (   0.57,-125.40)  285.83                80
 06/10/2020   10:14:29   (   0.01,-127.90) (   0.60,-130.59)  307.12                80
 06/11/2020   09:52:52   (   0.00,-127.87) (  -0.40,-126.01)  211.43                80
 06/12/2020   22:14:31   (  -0.02,-127.80) (  -0.81,-131.23)  391.81                80
 06/13/2020   21:58:15   (  -0.01,-127.77) (   0.26,-126.66)  127.14                80
 06/15/2020   10:19:45   (   0.03,-127.76) (   0.92,-131.85)  465.55                80
 06/16/2020   09:58:08   (   0.01,-127.72) (  -0.09,-127.26)   52.64                80