Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2019 8 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 08/20/2019   18:10:14   (   0.08,-128.46) (   0.34,-129.78)  149.61                80
 08/21/2019   17:46:55   (   0.05,-128.46) (  -0.77,-124.78)  418.97                80
 08/23/2019   06:08:34   (  -0.09,-128.44) (  -0.32,-129.36)  106.06                80
 08/24/2019   05:45:15   (  -0.07,-128.43) (   0.85,-124.38)  461.71                80
 08/25/2019   18:06:46   (   0.11,-128.43) (   0.21,-128.93)   56.28                80
 08/28/2019   06:05:06   (  -0.12,-128.39) (  -0.13,-128.53)   15.10                80
 08/30/2019   18:00:37   (   0.13,-128.37) (   0.08,-128.08)   32.57                80
 09/01/2019   06:22:18   (  -0.17,-128.34) (  -1.12,-132.68)  493.57                80
 09/02/2019   05:58:58   (  -0.14,-128.32) (   0.00,-127.68)   73.06                80