Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 1 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/14/2019   18:56:57   (  -0.02,-128.16) (  -0.44,-126.35)  207.33                80
 01/15/2019   07:18:21   (   0.01,-128.22) (  -0.67,-131.54)  376.69                80
 01/17/2019   07:06:09   (   0.02,-128.15) (  -0.07,-128.57)   47.64                80
 01/19/2019   06:51:17   (   0.02,-128.08) (   0.53,-125.61)  280.49                80
 01/19/2019   19:12:32   (  -0.01,-127.98) (   0.59,-130.76)  315.98                80
 01/21/2019   19:03:00   (  -0.01,-127.90) (  -0.01,-127.80)   12.00                80
 01/23/2019   18:50:49   (  -0.01,-127.82) (  -0.67,-124.85)  339.02                80
 01/24/2019   07:12:13   (  -0.00,-127.88) (  -0.45,-130.04)  244.66                80
 01/26/2019   06:57:21   (  -0.00,-127.80) (   0.15,-127.07)   82.38                80