Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 10 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/03/2021   07:13:51   (   0.37,-127.77) (  -0.46,-131.58)  433.83                80
 10/04/2021   18:40:15   (  -0.36,-127.82) (  -1.30,-123.44)  498.42                80
 10/05/2021   07:01:38   (   0.37,-127.84) (   0.22,-128.63)   89.68                80
 10/07/2021   06:49:24   (   0.37,-127.91) (   0.83,-125.67)  254.02                80
 10/07/2021   19:07:59   (  -0.38,-127.92) (   0.26,-130.83)  331.37                80
 10/09/2021   18:58:25   (  -0.37,-127.98) (  -0.36,-127.87)   11.93                80
 10/11/2021   18:46:12   (  -0.37,-128.03) (  -1.05,-124.93)  353.53                80
 10/12/2021   07:07:35   (   0.37,-128.05) (  -0.09,-130.11)  234.81                80
 10/14/2021   06:52:41   (   0.36,-128.10) (   0.54,-127.15)  106.70                80
 10/14/2021   19:13:56   (  -0.36,-128.10) (   0.54,-132.31)  479.38                80
 10/16/2021   06:40:27   (   0.36,-128.14) (   1.18,-124.20)  448.11                80
 10/16/2021   19:01:42   (  -0.36,-128.15) (  -0.09,-129.36)  137.90                80