Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 7 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/31/2017   19:19:14   (   0.03,-134.73) (  -0.43,-132.60)  242.33                80
 08/01/2017   07:43:17   (  -0.07,-134.65) (  -0.74,-137.78)  356.44                80
 08/03/2017   07:31:06   (  -0.06,-134.55) (  -0.14,-134.82)   31.10                80
 08/05/2017   07:16:15   (  -0.06,-134.45) (   0.47,-131.87)  293.72                80
 08/05/2017   19:40:11   (   0.09,-134.49) (   0.63,-137.03)  288.52                80
 08/07/2017   19:25:20   (   0.08,-134.38) (   0.01,-134.07)   35.60                80
 08/09/2017   19:13:09   (   0.07,-134.27) (  -0.61,-131.11)  359.26                80
 08/10/2017   07:37:12   (  -0.11,-134.19) (  -0.56,-136.29)  239.62                80
 08/12/2017   07:22:21   (  -0.10,-134.07) (   0.07,-133.34)   83.25                80