Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 1 23.  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)
 01/24/2018   18:09:28   (   0.00,-134.92) (  -0.90,-130.87)  461.51                80
 01/26/2018   06:28:27   (  -0.00,-134.99) (  -0.11,-135.47)   54.56                80
 01/28/2018   18:23:56   (   0.00,-135.06) (  -0.01,-135.04)    2.13                80
 01/31/2018   06:22:13   (  -0.01,-135.15) (   0.08,-134.64)   57.36                80
 02/01/2018   18:41:04   (   0.03,-135.17) (   0.92,-139.20)  459.89                80
 02/02/2018   18:23:03   (   0.03,-135.20) (  -0.20,-134.21)  112.39                80
 02/04/2018   06:42:01   (  -0.03,-135.26) (  -0.80,-138.81)  404.62                80
 02/05/2018   06:18:41   (  -0.02,-135.28) (   0.33,-133.82)  167.23                80
 02/06/2018   18:37:30   (   0.02,-135.30) (   0.72,-138.38)  351.08                80