Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 8 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/26/2017   07:34:44   (   0.23,-135.03) (  -0.08,-136.41)  157.19                80
 08/28/2017   07:25:13   (   0.22,-135.03) (   0.55,-133.46)  179.03                80
 08/28/2017   19:43:50   (  -0.25,-135.11) (   0.47,-138.63)  400.02                80
 08/30/2017   19:31:38   (  -0.24,-135.10) (  -0.10,-135.67)   64.38                80
 09/01/2017   19:22:07   (  -0.23,-135.09) (  -0.73,-132.71)  270.56                80
 09/02/2017   07:43:31   (   0.26,-135.02) (  -0.38,-137.90)  328.01                80
 09/04/2017   07:28:40   (   0.25,-135.00) (   0.26,-134.95)    6.09                80
 09/06/2017   07:18:03   (   0.25,-134.98) (   0.90,-132.00)  339.63                14
 09/06/2017   19:37:45   (  -0.27,-135.04) (   0.19,-137.16)  241.36                80
 09/08/2017   19:28:14   (  -0.27,-135.01) (  -0.46,-134.21)   91.60                80