Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 1 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2019   07:06:09   (   0.02,-128.15) (  -0.07,-128.57)   47.24                80
 01/19/2019   06:51:17   (   0.02,-128.08) (   0.52,-125.60)  281.17                80
 01/19/2019   19:12:32   (  -0.01,-127.99) (   0.60,-130.75)  314.81                80
 01/21/2019   19:03:01   (  -0.01,-127.91) (  -0.05,-127.80)   13.16                80
 01/23/2019   18:50:49   (  -0.01,-127.84) (  -0.64,-124.84)  340.67                80
 01/24/2019   07:12:12   (  -0.00,-127.89) (  -0.48,-130.03)  243.37                80
 01/26/2019   06:57:22   (  -0.00,-127.81) (   0.16,-127.07)   83.87                80
 01/28/2019   06:45:10   (  -0.00,-127.72) (   0.74,-124.11)  410.74                80
 01/28/2019   19:06:25   (   0.01,-127.62) (   0.33,-129.27)  186.70                80
 01/30/2019   18:56:53   (   0.00,-127.53) (  -0.24,-126.30)  139.65                80