Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 10 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/26/2020   09:57:02   (  -0.14,-128.22) (  -0.49,-126.60)  184.39                80
 10/27/2020   22:21:20   (   0.12,-128.18) (  -0.69,-131.82)  415.16                80
 10/28/2020   21:59:43   (   0.13,-128.16) (   0.34,-127.24)  104.38                80
 10/30/2020   10:23:52   (  -0.11,-128.13) (   0.85,-132.42)  489.52                80
 10/31/2020   10:02:15   (  -0.12,-128.10) (  -0.18,-127.84)   30.01                80
 11/02/2020   22:07:36   (   0.11,-128.03) (  -0.01,-128.47)   50.98                80
 11/03/2020   21:46:00   (   0.12,-128.00) (   1.02,-123.89)  467.71                80
 11/05/2020   10:10:09   (  -0.10,-127.95) (   0.12,-129.08)  127.95                80
 11/06/2020   09:48:32   (  -0.12,-127.92) (  -0.91,-124.50)  390.47                80
 11/07/2020   22:12:50   (   0.10,-127.86) (  -0.30,-129.72)  210.68                80
 11/08/2020   21:51:13   (   0.11,-127.82) (   0.74,-125.14)  307.12                80