Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 8.  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)
 01/09/2018   06:37:02   (   0.03,-134.94) (  -0.29,-136.35)  160.59                80
 01/10/2018   06:13:42   (   0.03,-134.90) (   0.82,-131.35)  404.31                80
 01/11/2018   18:32:34   (  -0.03,-134.80) (   0.22,-135.91)  126.37                80
 01/12/2018   18:14:34   (  -0.03,-134.76) (  -0.89,-130.91)  438.42                80
 01/14/2018   06:33:35   (   0.03,-134.75) (  -0.14,-135.51)   87.04                80
 01/15/2018   06:10:15   (   0.03,-134.70) (   0.97,-130.52)  477.19                80
 01/16/2018   18:29:06   (  -0.02,-134.59) (   0.07,-135.07)   54.90                80
 01/19/2018   06:30:06   (   0.02,-134.52) (  -0.04,-134.66)   17.15                80
 01/21/2018   18:28:18   (  -0.01,-134.34) (  -0.02,-134.22)   13.71                80