Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 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)
 10/30/2020   10:23:51   (  -0.11,-128.12) (   0.87,-132.41)  489.86                80
 10/31/2020   10:02:15   (  -0.12,-128.10) (  -0.16,-127.83)   29.60                80
 11/02/2020   22:07:37   (   0.11,-128.02) (   0.03,-128.48)   51.25                80
 11/03/2020   21:46:00   (   0.12,-127.99) (   1.07,-123.90)  467.32                80
 11/05/2020   10:10:08   (  -0.10,-127.94) (   0.14,-129.08)  128.97                80
 11/06/2020   09:48:32   (  -0.12,-127.91) (  -0.90,-124.50)  389.28                80
 11/07/2020   22:12:49   (   0.10,-127.85) (  -0.31,-129.71)  211.60                80
 11/08/2020   21:51:13   (   0.11,-127.81) (   0.73,-125.13)  306.09                80
 11/10/2020   10:15:21   (  -0.09,-127.75) (   0.48,-130.31)  291.49                80
 11/11/2020   09:53:45   (  -0.11,-127.71) (  -0.55,-125.73)  226.22                80
 11/12/2020   22:18:02   (   0.08,-127.65) (  -0.65,-130.94)  374.83                80