Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 1 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/21/2019   19:02:59   (  -0.01,-127.92) (  -0.03,-127.79)   14.73                80
 01/23/2019   18:50:47   (  -0.00,-127.85) (  -0.64,-124.83)  342.92                80
 01/24/2019   07:12:11   (  -0.00,-127.90) (  -0.48,-130.02)  242.04                80
 01/26/2019   06:57:20   (  -0.01,-127.82) (   0.18,-127.07)   85.86                80
 01/28/2019   06:45:08   (  -0.00,-127.74) (   0.79,-124.11)  413.28                80
 01/28/2019   19:06:23   (   0.01,-127.64) (   0.33,-129.26)  182.91                80
 01/30/2019   18:56:51   (   0.01,-127.56) (  -0.28,-126.30)  144.08                80
 01/31/2019   07:18:15   (  -0.01,-127.61) (  -0.85,-131.48)  440.24                80
 02/01/2019   18:44:39   (   0.00,-127.47) (  -0.88,-123.33)  470.61                80
 02/02/2019   07:06:03   (  -0.01,-127.52) (  -0.24,-128.52)  113.94                80