Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 9 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)
 09/22/2018   18:16:07   (  -0.25,-135.57) (  -0.51,-134.34)  140.56                80
 09/24/2018   06:32:24   (   0.28,-135.53) (  -0.48,-138.94)  388.80                80
 09/25/2018   06:14:23   (   0.26,-135.54) (   0.63,-133.94)  182.11                80
 09/26/2018   18:30:32   (  -0.28,-135.63) (   0.35,-138.52)  329.17                80
 09/27/2018   18:12:31   (  -0.27,-135.64) (  -0.76,-133.52)  241.87                80
 09/29/2018   06:28:47   (   0.29,-135.59) (  -0.29,-138.11)  288.13                80
 09/30/2018   06:10:46   (   0.27,-135.59) (   0.83,-133.12)  281.77                80
 10/01/2018   18:26:55   (  -0.29,-135.65) (   0.16,-137.69)  231.70                80
 10/02/2018   18:08:53   (  -0.27,-135.65) (  -0.95,-132.69)  338.20                80
 10/04/2018   06:27:50   (   0.29,-135.59) (  -0.09,-137.28)  192.68                80
 10/05/2018   06:07:08   (   0.28,-135.59) (   1.02,-132.29)  376.24                80