Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 12 1.  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)
 12/02/2018   18:05:57   (  -0.21,-128.50) (   0.06,-129.80)  146.97                80
 12/03/2018   17:47:59   (  -0.21,-128.52) (  -1.04,-124.80)  424.24                80
 12/05/2018   06:07:00   (   0.20,-128.54) (  -0.02,-129.39)   97.97                80
 12/06/2018   05:43:43   (   0.21,-128.54) (   1.15,-124.41)  471.94                80
 12/07/2018   18:02:35   (  -0.19,-128.58) (  -0.09,-128.96)   44.17                80
 12/10/2018   06:00:59   (   0.18,-128.60) (   0.19,-128.56)    4.36                80
 12/12/2018   18:01:54   (  -0.17,-128.62) (  -0.30,-128.13)   56.19                80
 12/14/2018   06:20:55   (   0.15,-128.65) (  -0.76,-132.72)  464.50                80
 12/15/2018   05:57:36   (   0.16,-128.65) (   0.35,-127.73)  104.54                80