Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 8 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/19/2017   07:31:17   (   0.19,-134.98) (   0.20,-134.92)    6.92                80
 08/21/2017   07:19:06   (   0.18,-135.00) (   0.80,-131.96)  344.87                80
 08/21/2017   19:37:43   (  -0.21,-135.09) (   0.22,-137.13)  231.95                80
 08/23/2017   19:28:12   (  -0.21,-135.11) (  -0.38,-134.17)  105.87                80
 08/24/2017   07:46:57   (   0.23,-135.03) (  -0.69,-139.37)  493.79                80
 08/25/2017   19:16:02   (  -0.20,-135.13) (  -1.03,-131.23)  443.38                80
 08/26/2017   07:34:46   (   0.23,-135.05) (  -0.09,-136.42)  156.52                80
 08/28/2017   07:25:16   (   0.22,-135.05) (   0.56,-133.47)  180.28                80
 08/28/2017   19:43:52   (  -0.25,-135.13) (   0.47,-138.64)  398.20                80
 08/30/2017   19:31:42   (  -0.24,-135.14) (  -0.12,-135.68)   62.03                80