Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 7 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/29/2017   19:34:04   (   0.04,-134.82) (   0.20,-135.55)   83.82                80
 07/31/2017   19:19:13   (   0.03,-134.73) (  -0.39,-132.59)  242.46                80
 08/01/2017   07:43:17   (  -0.07,-134.65) (  -0.73,-137.78)  356.24                80
 08/03/2017   07:31:06   (  -0.06,-134.56) (  -0.13,-134.82)   30.74                80
 08/05/2017   07:16:15   (  -0.05,-134.46) (   0.47,-131.87)  294.10                80
 08/05/2017   19:40:11   (   0.09,-134.49) (   0.63,-137.02)  288.18                80
 08/07/2017   19:25:20   (   0.08,-134.39) (   0.02,-134.07)   36.01                80
 08/09/2017   19:13:09   (   0.07,-134.28) (  -0.58,-131.11)  359.68                80
 08/10/2017   07:37:13   (  -0.11,-134.19) (  -0.53,-136.30)  239.18                80
 08/12/2017   07:22:22   (  -0.10,-134.08) (   0.09,-133.34)   83.77                80