Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 9 11.  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)
 09/11/2018   06:04:31   (   0.19,-135.22) (   1.02,-131.40)  433.75                80
 09/12/2018   18:20:41   (  -0.22,-135.35) (  -0.10,-135.99)   72.77                80
 09/15/2018   06:18:56   (   0.23,-135.35) (   0.17,-135.59)   27.04                80
 09/17/2018   18:19:44   (  -0.24,-135.49) (  -0.31,-135.16)   37.68                80
 09/19/2018   06:36:01   (   0.26,-135.46) (  -0.67,-139.77)  489.92                80
 09/20/2018   06:17:58   (   0.24,-135.48) (   0.39,-134.76)   82.19                80
 09/21/2018   18:34:08   (  -0.27,-135.58) (   0.59,-139.33)  427.46                80
 09/22/2018   18:16:06   (  -0.25,-135.61) (  -0.53,-134.34)  144.80                80
 09/24/2018   06:32:24   (   0.28,-135.57) (  -0.45,-138.94)  383.11                80