Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 9 9.  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)
 09/10/2018   06:22:32   (   0.21,-135.18) (  -0.08,-136.40)  139.59                80
 09/11/2018   06:04:31   (   0.19,-135.22) (   1.04,-131.41)  433.79                80
 09/12/2018   18:20:40   (  -0.22,-135.35) (  -0.06,-135.98)   72.61                80
 09/15/2018   06:18:56   (   0.23,-135.35) (   0.19,-135.59)   26.84                80
 09/17/2018   18:19:44   (  -0.24,-135.50) (  -0.33,-135.17)   38.10                80
 09/19/2018   06:36:00   (   0.26,-135.47) (  -0.72,-139.76)  489.52                80
 09/20/2018   06:17:59   (   0.24,-135.49) (   0.40,-134.76)   82.61                80
 09/21/2018   18:34:08   (  -0.27,-135.59) (   0.57,-139.33)  426.91                80
 09/22/2018   18:16:06   (  -0.25,-135.61) (  -0.55,-134.34)  145.39                80