Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 6 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)
 06/24/2017   18:40:40   (  -0.13,-135.47) (   0.33,-137.62)  244.52                80
 06/25/2017   18:17:21   (  -0.15,-135.48) (  -0.81,-132.63)  324.47                80
 06/27/2017   06:39:00   (   0.13,-135.44) (  -0.25,-137.22)  203.37                80
 06/28/2017   06:15:40   (   0.15,-135.44) (   0.89,-132.23)  365.66                80
 06/29/2017   18:37:11   (  -0.13,-135.49) (   0.16,-136.79)  148.60                80
 06/30/2017   18:13:51   (  -0.15,-135.49) (  -0.98,-131.80)  420.12                80
 07/02/2017   06:35:31   (   0.13,-135.44) (  -0.08,-136.39)  108.19                80
 07/03/2017   06:12:11   (   0.15,-135.44) (   1.06,-131.40)  460.42                80
 07/04/2017   18:33:41   (  -0.12,-135.48) (  -0.02,-135.96)   54.40                80
 07/07/2017   06:32:01   (   0.12,-135.42) (   0.11,-135.56)   16.06                80