Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2015 12 8.  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)
 12/10/2015   06:25:55   (   0.16,-135.32) (   0.27,-134.74)   65.98                80
 12/11/2015   18:44:48   (  -0.14,-135.33) (   0.73,-139.31)  452.64                80
 12/12/2015   18:26:49   (  -0.15,-135.31) (  -0.34,-134.30)  114.11                80
 12/14/2015   06:45:50   (   0.13,-135.24) (  -0.67,-138.90)  416.85                80
 12/15/2015   06:22:31   (   0.14,-135.21) (   0.46,-133.91)  149.01                80
 12/16/2015   18:41:24   (  -0.12,-135.20) (   0.60,-138.46)  371.32                80
 12/17/2015   18:23:25   (  -0.12,-135.17) (  -0.53,-133.47)  194.65                80
 12/19/2015   06:42:26   (   0.11,-135.09) (  -0.53,-138.06)  336.91                80
 12/20/2015   06:19:06   (   0.12,-135.06) (   0.54,-133.05)  228.20                80
 12/21/2015   18:37:59   (  -0.10,-135.04) (   0.46,-137.62)  293.76                80