Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 7 1.  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)
 07/02/2017   06:35:31   (   0.13,-135.42) (  -0.08,-136.39)  110.03                80
 07/03/2017   06:12:11   (   0.14,-135.42) (   1.06,-131.40)  458.12                80
 07/04/2017   18:33:41   (  -0.12,-135.45) (  -0.02,-135.96)   56.91                80
 07/07/2017   06:32:01   (   0.12,-135.38) (   0.09,-135.56)   20.02                80
 07/09/2017   18:27:32   (  -0.12,-135.39) (  -0.20,-135.13)   31.21                80
 07/12/2017   06:25:51   (   0.12,-135.30) (   0.22,-134.71)   66.15                80
 07/13/2017   18:47:21   (  -0.09,-135.32) (   0.81,-139.27)  450.80                80
 07/14/2017   18:24:02   (  -0.11,-135.30) (  -0.32,-134.28)  115.50                80