Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/02/2020   22:07:36   (   0.11,-128.03) (  -0.00,-128.47)   50.62                80
 11/03/2020   21:46:00   (   0.12,-128.00) (   1.04,-123.89)  467.95                80
 11/05/2020   10:10:08   (  -0.10,-127.94) (   0.16,-129.07)  128.92                80
 11/06/2020   09:48:31   (  -0.12,-127.90) (  -0.87,-124.49)  389.32                80
 11/07/2020   22:12:49   (   0.10,-127.86) (  -0.34,-129.70)  210.94                80
 11/08/2020   21:51:12   (   0.11,-127.82) (   0.69,-125.12)  306.82                80
 11/10/2020   10:15:22   (  -0.09,-127.75) (   0.45,-130.31)  291.30                80
 11/11/2020   09:53:44   (  -0.11,-127.71) (  -0.52,-125.72)  226.45                80
 11/12/2020   22:18:01   (   0.08,-127.66) (  -0.68,-130.93)  374.06                80
 11/13/2020   21:56:25   (   0.09,-127.61) (   0.36,-126.35)  143.25                80
 11/15/2020   10:20:33   (  -0.06,-127.53) (   0.85,-131.53)  455.96                80
 11/16/2020   09:58:57   (  -0.08,-127.49) (  -0.18,-126.95)   61.06                80