Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 12 27.  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)
 12/27/2018   05:43:24   (   0.12,-128.57) (   0.27,-127.77)   90.65                80
 12/28/2018   18:02:12   (  -0.11,-128.55) (   0.71,-132.34)  432.01                80
 12/29/2018   17:44:10   (  -0.11,-128.54) (  -0.38,-127.34)  136.51                80
 12/31/2018   06:03:06   (   0.10,-128.54) (  -0.65,-131.94)  386.85                80
 01/01/2019   05:39:43   (   0.11,-128.52) (   0.44,-126.94)  180.52                80
 01/02/2019   17:58:32   (  -0.10,-128.48) (   0.55,-131.51)  343.67                80
 01/03/2019   17:40:29   (  -0.10,-128.47) (  -0.54,-126.50)  224.34                80
 01/05/2019   05:59:26   (   0.09,-128.47) (  -0.48,-131.10)  298.99                80
 01/06/2019   05:36:03   (   0.09,-128.45) (   0.61,-126.10)  267.88                80
 01/07/2019   17:54:50   (  -0.08,-128.40) (   0.44,-130.65)  257.94                80
 01/08/2019   17:36:49   (  -0.08,-128.38) (  -0.70,-125.67)  309.67                80