Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 12 25.  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)
 12/26/2018   06:06:46   (   0.12,-128.59) (  -0.81,-132.78)  477.05                80
 12/27/2018   05:43:24   (   0.12,-128.57) (   0.28,-127.77)   90.68                80
 12/28/2018   18:02:11   (  -0.11,-128.55) (   0.76,-132.33)  431.97                80
 12/29/2018   17:44:10   (  -0.11,-128.54) (  -0.38,-127.34)  136.59                80
 12/31/2018   06:03:06   (   0.10,-128.54) (  -0.64,-131.94)  386.67                80
 01/01/2019   05:39:44   (   0.11,-128.53) (   0.44,-126.94)  180.70                80
 01/02/2019   17:58:31   (  -0.10,-128.48) (   0.60,-131.49)  343.50                80
 01/03/2019   17:40:29   (  -0.10,-128.47) (  -0.55,-126.50)  224.56                80
 01/05/2019   05:59:26   (   0.09,-128.48) (  -0.47,-131.10)  298.65                80
 01/06/2019   05:36:03   (   0.09,-128.45) (   0.62,-126.10)  268.24                80
 01/07/2019   17:54:51   (  -0.08,-128.40) (   0.43,-130.66)  257.61                80
 01/08/2019   17:36:48   (  -0.08,-128.38) (  -0.66,-125.65)  310.04                80