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) (  -0.43,-126.34)  207.13                80
 01/15/2019   07:18:21   (   0.01,-128.22) (  -0.68,-131.53)  376.79                80
 01/17/2019   07:06:09   (   0.02,-128.15) (  -0.08,-128.57)   47.85                80
 01/19/2019   06:51:17   (   0.02,-128.08) (   0.52,-125.61)  280.20                80
 01/19/2019   19:12:33   (  -0.01,-127.98) (   0.55,-130.77)  316.43                80
 01/21/2019   19:03:01   (  -0.01,-127.90) (  -0.04,-127.81)   11.11                80
 01/23/2019   18:50:49   (  -0.01,-127.82) (  -0.63,-124.84)  338.31                80
 01/24/2019   07:12:13   (  -0.00,-127.88) (  -0.48,-130.03)  245.29                80
 01/26/2019   06:57:22   (  -0.00,-127.79) (   0.17,-127.08)   81.65                80