Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 9 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/11/2019   18:56:37   (  -0.27,-128.19) (  -0.66,-126.38)  206.02                80
 09/12/2019   07:15:20   (   0.29,-128.16) (  -0.45,-131.57)  388.79                80
 09/14/2019   07:03:09   (   0.29,-128.11) (   0.20,-128.62)   57.53                80
 09/16/2019   06:53:36   (   0.29,-128.06) (   0.79,-125.65)  273.45                80
 09/16/2019   19:12:11   (  -0.31,-128.07) (   0.27,-130.82)  312.43                80
 09/18/2019   19:02:38   (  -0.30,-128.01) (  -0.32,-127.85)   18.01                80
 09/20/2019   18:50:26   (  -0.30,-127.95) (  -0.97,-124.90)  347.71                80
 09/21/2019   07:11:50   (   0.31,-127.91) (  -0.13,-130.09)  246.64                80
 09/23/2019   06:59:37   (   0.30,-127.84) (   0.47,-127.12)   82.00                80