Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 9 18.  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)
 09/19/2017   18:37:01   (  -0.25,-135.36) (   0.23,-137.65)  259.56                80
 09/20/2017   18:19:01   (  -0.23,-135.38) (  -0.87,-132.65)  312.13                80
 09/22/2017   06:37:59   (   0.26,-135.34) (  -0.17,-137.24)  216.48                80
 09/23/2017   06:17:18   (   0.24,-135.35) (   0.93,-132.24)  354.31                80
 09/24/2017   18:33:30   (  -0.26,-135.43) (   0.05,-136.81)  157.01                80
 09/25/2017   18:15:29   (  -0.24,-135.45) (  -1.06,-131.81)  414.01                80
 09/27/2017   06:34:28   (   0.26,-135.40) (   0.02,-136.41)  114.95                80
 09/28/2017   06:11:07   (   0.24,-135.40) (   1.12,-131.41)  455.04                80
 09/29/2017   18:29:58   (  -0.26,-135.47) (  -0.15,-135.98)   58.07                80
 10/02/2017   06:30:56   (   0.26,-135.43) (   0.21,-135.57)   17.26                80