Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2016 7 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/20/2016   07:49:57   (  -0.03,-135.29) (  -0.91,-139.40)  467.31                80
 07/21/2016   19:13:43   (  -0.01,-135.25) (  -0.88,-131.26)  454.64                80
 07/22/2016   07:37:45   (  -0.02,-135.23) (  -0.28,-136.44)  137.03                80
 07/24/2016   07:22:53   (  -0.01,-135.17) (   0.35,-133.48)  192.68                80
 07/24/2016   19:46:48   (   0.04,-135.16) (   0.77,-138.63)  394.32                80
 07/26/2016   19:34:36   (   0.03,-135.09) (   0.13,-135.67)   65.28                80
 07/28/2016   19:19:43   (   0.03,-135.02) (  -0.45,-132.70)  263.16                80
 07/29/2016   07:43:46   (  -0.06,-135.00) (  -0.69,-137.88)  328.78                80
 07/31/2016   07:28:54   (  -0.05,-134.92) (  -0.03,-134.93)    2.38                80
 08/02/2016   07:16:41   (  -0.04,-134.83) (   0.57,-131.96)  326.26                80
 08/02/2016   19:40:36   (   0.08,-134.81) (   0.56,-137.11)  261.51                80