Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2015 12 20.  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)
 12/20/2015   06:19:06   (   0.12,-135.04) (   0.57,-133.06)  226.38                80
 12/21/2015   18:37:59   (  -0.10,-135.03) (   0.49,-137.61)  294.84                80
 12/22/2015   18:20:00   (  -0.11,-134.99) (  -0.65,-132.62)  270.17                80
 12/24/2015   06:39:00   (   0.09,-134.89) (  -0.40,-137.21)  263.32                80
 12/25/2015   06:15:41   (   0.10,-134.85) (   0.68,-132.21)  300.96                80
 12/26/2015   18:34:33   (  -0.08,-134.82) (   0.38,-136.76)  221.57                80
 12/27/2015   18:16:35   (  -0.09,-134.78) (  -0.76,-131.77)  343.05                80
 12/29/2015   06:35:35   (   0.07,-134.68) (  -0.28,-136.36)  190.55                80
 12/30/2015   06:12:16   (   0.08,-134.64) (   0.80,-131.36)  373.41                80
 12/31/2015   18:31:08   (  -0.06,-134.60) (   0.25,-135.91)  150.13                80
 01/01/2016   18:13:09   (  -0.07,-134.56) (  -0.89,-130.92)  414.07                80