Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 9 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/09/2021   18:46:47   (  -0.33,-128.16) (  -1.03,-124.91)  370.28                80
 09/10/2021   07:05:30   (   0.35,-128.21) (  -0.07,-130.10)  215.77                80
 09/12/2021   06:55:57   (   0.34,-128.18) (   0.56,-127.15)  117.37                80
 09/12/2021   19:14:32   (  -0.36,-128.12) (   0.54,-132.31)  476.28                80
 09/14/2021   06:43:44   (   0.33,-128.15) (   1.20,-124.19)  449.76                80
 09/14/2021   19:02:19   (  -0.35,-128.08) (  -0.10,-129.35)  144.02                80
 09/16/2021   18:52:45   (  -0.35,-128.04) (  -0.68,-126.39)  187.76                80
 09/17/2021   07:11:30   (   0.36,-128.09) (  -0.35,-131.59)  398.33                80
 09/19/2021   06:59:16   (   0.36,-128.05) (   0.23,-128.63)   66.58                80
 09/21/2021   06:49:43   (   0.36,-128.00) (   0.88,-125.68)  265.17                80
 09/21/2021   19:08:18   (  -0.37,-127.94) (   0.22,-130.83)  328.90                80