Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 1 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)
 01/18/2018   18:31:01   (  -0.01,-134.47) (   0.47,-136.68)  251.68                80
 01/19/2018   18:13:00   (  -0.01,-134.42) (  -0.60,-131.68)  312.06                80
 01/21/2018   06:31:58   (  -0.00,-134.39) (  -0.41,-136.27)  214.60                80
 01/22/2018   06:08:36   (   0.00,-134.33) (   0.66,-131.27)  348.70                80
 01/23/2018   18:27:27   (   0.00,-134.20) (   0.35,-135.83)  185.98                80
 01/24/2018   18:09:25   (   0.00,-134.14) (  -0.72,-130.83)  376.91                80
 01/26/2018   06:28:24   (  -0.00,-134.10) (  -0.29,-135.43)  151.18                80
 01/27/2018   06:05:02   (   0.00,-134.04) (   0.78,-130.42)  411.07                80
 01/28/2018   18:23:52   (  -0.00,-133.88) (   0.22,-134.99)  125.38                80
 01/29/2018   18:05:51   (  -0.00,-133.82) (  -0.84,-129.98)  436.53                80
 01/31/2018   06:22:08   (  -0.01,-133.76) (  -0.22,-134.57)   92.64                80