Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 10 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/16/2020   09:49:14   (  -0.14,-128.39) (  -1.08,-124.11)  486.59                80
 10/17/2020   22:10:52   (   0.13,-128.36) (  -0.11,-129.34)  111.83                80
 10/18/2020   21:49:16   (   0.14,-128.35) (   0.92,-124.76)  408.88                80
 10/20/2020   10:13:25   (  -0.13,-128.34) (   0.21,-129.95)  183.15                80
 10/21/2020   09:51:48   (  -0.14,-128.32) (  -0.82,-125.37)  337.38                80
 10/22/2020   22:16:06   (   0.13,-128.29) (  -0.42,-130.58)  261.73                80
 10/23/2020   21:54:29   (   0.14,-128.27) (   0.62,-126.00)  258.33                80
 10/25/2020   10:18:39   (  -0.13,-128.25) (   0.52,-131.19)  334.67                80
 10/26/2020   09:57:02   (  -0.14,-128.24) (  -0.51,-126.61)  185.60                80
 10/27/2020   22:21:19   (   0.12,-128.20) (  -0.72,-131.82)  413.11                80
 10/28/2020   21:59:43   (   0.13,-128.18) (   0.32,-127.24)  106.85                80