Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/16/2018   19:12:54   (  -0.01,-134.57) (  -0.73,-131.03)  401.37                80
 01/17/2018   07:36:58   (  -0.00,-134.59) (  -0.32,-136.23)  185.89                80
 01/19/2018   07:22:07   (  -0.00,-134.50) (   0.27,-133.27)  139.56                80
 01/19/2018   19:46:01   (   0.01,-134.42) (   0.87,-138.42)  455.15                80
 01/21/2018   07:09:55   (  -0.01,-134.39) (   0.86,-130.30)  464.55                80
 01/21/2018   19:33:49   (   0.01,-134.31) (   0.28,-135.45)  130.33                80
 01/23/2018   19:18:58   (   0.01,-134.20) (  -0.38,-132.50)  193.88                80
 01/24/2018   07:40:22   (  -0.02,-134.22) (  -0.73,-137.69)  393.95                80
 01/26/2018   07:28:10   (  -0.01,-134.10) (  -0.14,-134.73)   70.89                80
 01/28/2018   07:18:38   (  -0.01,-133.97) (   0.46,-131.76)  251.27                80
 01/28/2018   19:39:53   (   0.01,-133.89) (   0.68,-136.91)  344.35                80