Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 9 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)
 09/18/2019   19:02:42   (  -0.30,-128.02) (  -0.31,-127.86)   17.36                80
 09/20/2019   18:50:31   (  -0.30,-127.96) (  -0.95,-124.91)  346.32                80
 09/21/2019   07:09:15   (   0.31,-127.91) (  -0.17,-130.10)  249.72                80
 09/23/2019   06:59:44   (   0.30,-127.84) (   0.47,-127.15)   78.43                80
 09/25/2019   06:47:32   (   0.30,-127.76) (   1.06,-124.19)  405.85                80
 09/25/2019   19:06:08   (  -0.31,-127.76) (   0.01,-129.35)  180.24                80
 09/27/2019   18:56:36   (  -0.31,-127.68) (  -0.58,-126.39)  146.89                80
 09/28/2019   07:18:00   (   0.32,-127.64) (  -0.54,-131.58)  448.32                80
 09/29/2019   18:44:24   (  -0.31,-127.60) (  -1.17,-123.43)  473.85                80
 09/30/2019   07:05:49   (   0.32,-127.56) (   0.12,-128.63)  121.57                80