Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 9 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/12/2019   07:15:21   (   0.29,-128.16) (  -0.43,-131.58)  388.93                80
 09/14/2019   07:03:08   (   0.29,-128.11) (   0.16,-128.61)   57.78                80
 09/16/2019   06:53:36   (   0.29,-128.06) (   0.81,-125.66)  273.16                80
 09/16/2019   19:12:11   (  -0.31,-128.07) (   0.30,-130.81)  312.40                80
 09/18/2019   19:02:39   (  -0.30,-128.01) (  -0.35,-127.86)   17.99                80
 09/20/2019   18:50:26   (  -0.30,-127.95) (  -0.94,-124.89)  347.62                80
 09/21/2019   07:09:10   (   0.31,-127.91) (  -0.16,-130.08)  247.06                80
 09/23/2019   06:59:13   (   0.30,-127.84) (   0.44,-127.12)   81.51                56
 09/25/2019   06:47:24   (   0.30,-127.76) (   1.04,-124.15)  409.39                80
 09/25/2019   19:05:59   (  -0.31,-127.75) (   0.01,-129.32)  177.87                80