Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 10 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/19/2017   19:21:52   (  -0.28,-135.21) (  -0.82,-132.70)  285.53                80
 10/20/2017   07:43:16   (   0.27,-135.19) (  -0.27,-137.89)  307.32                80
 10/22/2017   07:28:23   (   0.27,-135.13) (   0.33,-134.93)   23.62                80
 10/24/2017   07:16:10   (   0.27,-135.08) (   0.94,-131.96)  353.90                80
 10/24/2017   19:37:25   (  -0.26,-135.07) (   0.18,-137.12)  233.28                80
 10/26/2017   19:27:52   (  -0.26,-135.00) (  -0.43,-134.15)   96.44                80
 10/27/2017   07:49:16   (   0.25,-134.99) (  -0.66,-139.35)  495.17                80
 10/28/2017   19:15:39   (  -0.25,-134.93) (  -1.03,-131.19)  425.60                80
 10/29/2017   07:37:03   (   0.25,-134.92) (  -0.06,-136.38)  166.33                80
 10/31/2017   07:22:10   (   0.25,-134.84) (   0.55,-133.42)  161.88                80
 10/31/2017   19:43:25   (  -0.24,-134.81) (   0.57,-138.57)  427.49                80