Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2015 12 21.  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)
 12/21/2015   18:40:39   (  -0.10,-135.03) (   0.49,-137.61)  294.76                80
 12/22/2015   18:20:00   (  -0.11,-134.99) (  -0.65,-132.62)  270.26                80
 12/24/2015   06:39:00   (   0.09,-134.89) (  -0.40,-137.21)  263.28                80
 12/25/2015   06:15:41   (   0.10,-134.85) (   0.68,-132.21)  301.03                80
 12/26/2015   18:34:33   (  -0.08,-134.82) (   0.37,-136.76)  221.35                80
 12/27/2015   18:16:35   (  -0.09,-134.78) (  -0.77,-131.77)  343.29                80
 12/29/2015   06:35:34   (   0.07,-134.69) (  -0.32,-136.35)  190.36                80
 12/30/2015   06:12:16   (   0.08,-134.64) (   0.82,-131.36)  373.65                80
 12/31/2015   18:31:08   (  -0.06,-134.60) (   0.22,-135.92)  149.69                80
 01/01/2016   18:13:08   (  -0.07,-134.56) (  -0.86,-130.92)  414.53                80
 01/03/2016   06:32:09   (   0.06,-134.46) (  -0.17,-135.51)  119.45                80
 01/04/2016   06:08:49   (   0.07,-134.40) (   0.92,-130.51)  443.92                80