Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 11.  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)
 01/12/2018   18:14:34   (  -0.03,-134.76) (  -0.90,-130.92)  437.86                80
 01/14/2018   06:33:35   (   0.02,-134.74) (  -0.14,-135.51)   87.80                80
 01/15/2018   06:10:15   (   0.03,-134.69) (   0.97,-130.52)  476.27                80
 01/16/2018   18:29:07   (  -0.02,-134.57) (   0.07,-135.07)   56.24                80
 01/19/2018   06:30:06   (   0.01,-134.50) (  -0.04,-134.66)   18.72                80
 01/21/2018   18:28:18   (  -0.00,-134.32) (  -0.02,-134.22)   11.39                80
 01/24/2018   06:23:59   (   0.00,-134.23) (   0.12,-133.82)   47.44                80
 01/25/2018   18:42:50   (   0.00,-134.09) (   0.93,-138.38)  487.69                80