Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 18.  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)
 01/19/2018   06:27:28   (   0.01,-134.70) (   0.03,-134.68)    3.61                80
 01/21/2018   18:28:19   (   0.00,-134.79) (  -0.10,-134.24)   62.77                80
 01/23/2018   06:47:20   (  -0.01,-134.87) (  -0.92,-138.84)  452.12                80
 01/24/2018   06:24:01   (  -0.00,-134.91) (   0.25,-133.85)  120.90                80
 01/25/2018   18:45:32   (   0.01,-134.95) (   0.79,-138.41)  395.02                80
 01/26/2018   18:24:53   (   0.00,-134.98) (  -0.32,-133.42)  177.71                80
 01/28/2018   06:43:53   (  -0.00,-135.05) (  -0.69,-138.02)  338.61                80
 01/29/2018   06:20:35   (   0.00,-135.08) (   0.49,-133.03)  233.40                80
 01/30/2018   18:39:26   (   0.01,-135.10) (   0.57,-137.59)  284.14                80
 01/31/2018   18:21:27   (   0.01,-135.12) (  -0.55,-132.60)  288.10                80