Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 12 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)
 12/11/2018   19:06:31   (  -0.14,-128.58) (  -0.00,-129.35)   88.00                80
 12/13/2018   18:56:59   (  -0.14,-128.59) (  -0.58,-126.39)  249.47                80
 12/14/2018   07:18:24   (   0.12,-128.63) (  -0.48,-131.59)  335.23                80
 12/16/2018   07:06:12   (   0.12,-128.64) (   0.11,-128.62)    1.97                80
 12/18/2018   06:51:21   (   0.12,-128.64) (   0.78,-125.67)  337.84                80
 12/18/2018   19:12:36   (  -0.11,-128.59) (   0.34,-130.82)  253.85                80
 12/20/2018   19:03:04   (  -0.11,-128.58) (  -0.28,-127.86)   81.87                80
 12/22/2018   18:50:52   (  -0.11,-128.56) (  -0.91,-124.90)  416.80                80
 12/23/2018   07:12:16   (   0.10,-128.62) (  -0.20,-130.09)  167.12                80