Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 12 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2018   05:30:02   (   0.17,-128.62) (   1.06,-124.45)  473.74                80
 12/19/2018   17:48:51   (  -0.15,-128.61) (  -0.09,-129.02)   46.25                80
 12/22/2018   05:49:44   (   0.15,-128.61) (   0.13,-128.62)    1.64                80
 12/24/2018   17:47:50   (  -0.13,-128.57) (  -0.23,-128.18)   44.65                80
 12/26/2018   06:06:47   (   0.12,-128.58) (  -0.80,-132.78)  478.13                80
 12/27/2018   05:43:24   (   0.12,-128.56) (   0.29,-127.78)   89.23                80
 12/28/2018   18:02:11   (  -0.11,-128.51) (   0.76,-132.33)  435.43                80
 12/29/2018   17:44:10   (  -0.11,-128.51) (  -0.39,-127.34)  132.81                80
 12/31/2018   06:03:06   (   0.10,-128.52) (  -0.64,-131.94)  389.39                80