Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 6 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/19/2019   06:57:24   (   0.11,-128.18) (   0.32,-127.13)  119.23                80
 06/19/2019   19:21:18   (  -0.09,-128.21) (   0.79,-132.29)  463.35                80
 06/21/2019   06:45:12   (   0.12,-128.14) (   0.96,-124.18)  450.30                80
 06/21/2019   19:09:06   (  -0.10,-128.16) (   0.14,-129.33)  132.22                80
 06/23/2019   18:54:14   (  -0.11,-128.12) (  -0.51,-126.37)  198.75                80
 06/24/2019   07:18:17   (   0.09,-128.06) (  -0.66,-131.55)  396.70                80
 06/26/2019   07:06:05   (   0.09,-128.01) (  -0.01,-128.60)   66.24                80
 06/28/2019   06:51:12   (   0.10,-127.95) (   0.59,-125.63)  263.82                80
 06/28/2019   19:15:07   (  -0.07,-127.97) (   0.51,-130.78)  319.78                80
 06/30/2019   19:01:17   (  -0.08,-127.90) (  -0.09,-127.82)    9.47                17