Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2019 7 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/14/2019   10:00:37   (  -0.17,-127.77) (  -0.23,-127.54)   26.97                80
 07/16/2019   22:00:42   (   0.19,-127.82) (   0.11,-128.21)   43.89                80
 07/17/2019   21:44:27   (   0.18,-127.86) (   1.10,-123.63)  481.18                80
 07/19/2019   10:03:20   (  -0.20,-127.95) (   0.01,-128.85)  103.78                80
 07/20/2019   09:47:06   (  -0.19,-127.98) (  -1.04,-124.29)  420.94                80
 07/21/2019   22:06:06   (   0.21,-127.99) (  -0.12,-129.53)  175.62                80
 07/22/2019   21:49:51   (   0.20,-128.02) (   0.87,-124.95)  349.15                80
 07/24/2019   10:08:44   (  -0.23,-128.10) (   0.25,-130.17)  236.08                80
 07/25/2019   09:52:29   (  -0.22,-128.13) (  -0.80,-125.61)  288.12                80
 07/26/2019   22:11:30   (   0.24,-128.13) (  -0.35,-130.85)  309.84                80
 07/27/2019   21:55:14   (   0.23,-128.15) (   0.65,-126.27)  214.02                80