Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 2 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 02/20/2021   18:53:07   (   0.15,-128.08) (  -0.25,-126.29)  204.25                80
 02/21/2021   07:17:10   (  -0.16,-128.02) (  -0.91,-131.47)  392.39                80
 02/23/2021   07:04:58   (  -0.16,-128.07) (  -0.27,-128.51)   51.35                80
 02/25/2021   06:50:06   (  -0.15,-128.11) (   0.37,-125.56)  289.32                80
 02/25/2021   19:14:02   (   0.16,-128.19) (   0.68,-130.73)  288.05                80
 02/27/2021   18:59:10   (   0.16,-128.23) (   0.04,-127.78)   52.32                80
 03/01/2021   18:46:57   (   0.16,-128.27) (  -0.55,-124.81)  392.26                80
 03/02/2021   07:11:01   (  -0.16,-128.21) (  -0.55,-130.00)  204.59                80
 03/04/2021   06:56:09   (  -0.16,-128.23) (   0.10,-127.05)  134.49                80
 03/04/2021   19:17:24   (   0.16,-128.31) (   1.02,-132.21)  443.94                80