Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 10 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/30/2019   21:57:06   (  -0.16,-128.39) (   0.20,-126.73)  189.43                80
 11/01/2019   10:15:58   (   0.14,-128.46) (   0.90,-131.95)  396.47                80
 11/02/2019   09:59:42   (   0.15,-128.48) (  -0.12,-127.37)  126.41                80
 11/03/2019   22:18:43   (  -0.12,-128.44) (  -1.04,-132.61)  474.90                80
 11/04/2019   22:02:27   (  -0.13,-128.46) (  -0.02,-128.04)   47.93                80
 11/07/2019   10:02:23   (   0.12,-128.53) (   0.18,-128.66)   16.07                80
 11/09/2019   22:05:08   (  -0.11,-128.50) (  -0.30,-129.33)   94.94                80
 11/10/2019   21:48:52   (  -0.12,-128.51) (   0.72,-124.76)  427.48                80
 11/12/2019   10:07:45   (   0.10,-128.57) (   0.40,-129.97)  159.77                80