Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2017 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2017   15:17:58   (   0.02, -75.19) (  -0.59, -72.29)  329.62                80
 12/22/2017   03:39:22   (  -0.02, -75.18) (  -0.53, -77.48)  261.84                80
 12/24/2017   03:29:51   (  -0.03, -75.19) (   0.08, -74.52)   75.22                80
 12/26/2017   03:17:41   (  -0.03, -75.20) (   0.76, -71.58)  412.58                80
 12/26/2017   15:38:56   (   0.03, -75.22) (   0.38, -76.72)  171.88                80
 12/28/2017   15:24:06   (   0.03, -75.23) (  -0.31, -73.78)  165.81                80
 12/29/2017   03:45:30   (  -0.03, -75.22) (  -0.81, -78.97)  426.07                80
 12/31/2017   03:33:19   (  -0.03, -75.23) (  -0.18, -76.01)   88.22                80
 01/02/2018   03:23:48   (  -0.03, -75.25) (   0.45, -73.06)  249.99                80
 01/02/2018   15:45:03   (   0.03, -75.28) (   0.63, -78.22)  333.58                80