Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2019 1 10.  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)
 01/10/2019   18:02:14   (  -0.06,-128.28) (  -0.08,-128.09)   21.18                80
 01/13/2019   05:57:58   (   0.05,-128.26) (   0.20,-127.71)   64.06                80
 01/14/2019   18:16:49   (  -0.04,-128.17) (   0.89,-132.25)  465.66                80
 01/15/2019   17:58:51   (  -0.05,-128.14) (  -0.23,-127.26)  100.19                80
 01/17/2019   06:17:53   (   0.04,-128.14) (  -0.76,-131.86)  422.94                80
 01/18/2019   05:54:34   (   0.05,-128.10) (   0.30,-126.85)  141.68                80
 01/19/2019   18:13:26   (  -0.04,-127.99) (   0.74,-131.41)  390.30                80
 01/20/2019   17:55:27   (  -0.04,-127.95) (  -0.38,-126.42)  174.60                80
 01/22/2019   06:14:29   (   0.03,-127.95) (  -0.66,-131.01)  349.01                80
 01/23/2019   05:51:10   (   0.03,-127.90) (   0.46,-126.02)  215.08                80