Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 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)
 01/15/2019   07:18:21   (   0.01,-128.22) (  -0.67,-131.53)  376.42                80
 01/17/2019   07:06:09   (   0.02,-128.15) (  -0.06,-128.57)   47.21                80
 01/19/2019   06:51:17   (   0.02,-128.08) (   0.55,-125.61)  281.14                80
 01/19/2019   19:12:32   (  -0.01,-127.99) (   0.57,-130.76)  315.11                80
 01/21/2019   19:03:00   (  -0.01,-127.91) (  -0.05,-127.80)   12.91                80
 01/23/2019   18:50:47   (  -0.01,-127.83) (  -0.62,-124.83)  340.43                80
 01/24/2019   07:12:11   (  -0.00,-127.88) (  -0.44,-130.03)  243.32                80
 01/26/2019   06:57:19   (  -0.00,-127.80) (   0.13,-127.06)   84.09                80
 01/28/2019   06:45:07   (  -0.00,-127.71) (   0.76,-124.10)  411.13                80
 01/28/2019   19:06:21   (   0.01,-127.61) (   0.35,-129.25)  186.50                80