Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 7 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/13/2015   07:31:24   (   0.01,-135.07) (   0.01,-135.03)    4.56                45
 07/15/2015   07:17:09   (   0.02,-135.10) (   0.63,-132.07)  343.64                80
 07/15/2015   19:41:04   (   0.00,-135.09) (   0.43,-137.23)  243.34                80
 07/17/2015   19:26:13   (  -0.01,-135.11) (  -0.20,-134.28)   95.41                80
 07/18/2015   07:50:17   (  -0.02,-135.14) (  -0.93,-139.47)  491.84                80
 07/19/2015   19:14:02   (  -0.01,-135.14) (  -0.84,-131.33)  433.92                80
 07/20/2015   07:38:06   (  -0.01,-135.16) (  -0.28,-136.51)  153.34                80
 07/22/2015   07:23:15   (  -0.00,-135.18) (   0.37,-133.56)  184.79                80
 07/22/2015   19:47:10   (   0.03,-135.17) (   0.75,-138.71)  402.09                80
 07/24/2015   19:34:58   (   0.03,-135.18) (   0.15,-135.75)   64.67                80