Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 7 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/11/2015   07:44:10   (   0.01,-135.03) (  -0.62,-137.98)  335.31                80
 07/13/2015   07:29:20   (   0.02,-135.07) (   0.05,-135.04)    5.05                80
 07/15/2015   07:17:09   (   0.02,-135.09) (   0.67,-132.08)  342.82                80
 07/15/2015   19:41:04   (   0.00,-135.08) (   0.46,-137.23)  244.08                80
 07/17/2015   19:26:13   (  -0.01,-135.11) (  -0.17,-134.27)   94.34                80
 07/18/2015   07:50:17   (  -0.02,-135.13) (  -0.96,-139.46)  493.09                80
 07/19/2015   19:14:02   (  -0.02,-135.13) (  -0.81,-131.32)  432.56                80
 07/20/2015   07:38:06   (  -0.01,-135.15) (  -0.32,-136.51)  154.88                80
 07/22/2015   07:23:15   (  -0.00,-135.17) (   0.33,-133.56)  182.92                80
 07/22/2015   19:47:10   (   0.03,-135.16) (   0.79,-138.71)  403.90                80
 07/24/2015   19:34:59   (   0.03,-135.16) (   0.13,-135.76)   66.84                80