Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 9 23.  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)
 09/24/2018   06:32:24   (   0.28,-135.53) (  -0.51,-138.93)  389.03                80
 09/25/2018   06:14:22   (   0.26,-135.54) (   0.61,-133.94)  181.92                80
 09/26/2018   18:30:32   (  -0.28,-135.63) (   0.38,-138.51)  328.75                80
 09/27/2018   18:12:30   (  -0.27,-135.64) (  -0.74,-133.51)  242.31                80
 09/29/2018   06:28:48   (   0.29,-135.58) (  -0.26,-138.12)  288.21                80
 09/30/2018   06:10:45   (   0.27,-135.59) (   0.80,-133.11)  281.74                80
 10/01/2018   18:26:54   (  -0.29,-135.66) (   0.18,-137.68)  231.13                80
 10/02/2018   18:08:53   (  -0.27,-135.66) (  -0.93,-132.69)  338.80                80
 10/04/2018   06:27:50   (   0.29,-135.59) (  -0.06,-137.29)  192.64                80
 10/05/2018   06:07:08   (   0.28,-135.59) (   1.00,-132.28)  376.34                80
 10/06/2018   18:23:17   (  -0.30,-135.64) (  -0.02,-136.85)  138.13                80