Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 10 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/25/2020   10:18:39   (  -0.13,-128.24) (   0.51,-131.19)  335.52                80
 10/26/2020   09:57:02   (  -0.14,-128.22) (  -0.52,-126.61)  184.42                80
 10/27/2020   22:21:19   (   0.12,-128.18) (  -0.72,-131.82)  415.16                80
 10/28/2020   21:59:43   (   0.13,-128.16) (   0.31,-127.24)  104.46                80
 10/30/2020   10:23:52   (  -0.11,-128.13) (   0.83,-132.43)  489.34                80
 10/31/2020   10:02:16   (  -0.12,-128.11) (  -0.21,-127.85)   30.35                80
 11/02/2020   22:07:37   (   0.11,-128.03) (   0.01,-128.48)   50.66                80
 11/03/2020   21:46:00   (   0.12,-128.00) (   1.05,-123.90)  467.98                80
 11/05/2020   10:10:08   (  -0.10,-127.96) (   0.16,-129.08)  127.51                80
 11/06/2020   09:48:32   (  -0.12,-127.93) (  -0.87,-124.49)  390.91                80
 11/07/2020   22:12:49   (   0.10,-127.87) (  -0.34,-129.71)  210.25                80