Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 10 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/21/2021   07:01:17   (   0.35,-128.28) (   0.28,-128.64)   40.55                80
 10/23/2021   06:46:23   (   0.35,-128.32) (   0.93,-125.68)  299.97                80
 10/23/2021   19:10:17   (  -0.34,-128.32) (   0.21,-130.83)  285.47                80
 10/25/2021   18:56:26   (  -0.34,-128.35) (  -0.44,-127.88)   54.35                17
 10/27/2021   18:45:48   (  -0.33,-128.38) (  -1.04,-124.91)  393.58                80
 10/28/2021   07:07:12   (   0.32,-128.38) (  -0.02,-130.11)  195.83                80
 10/30/2021   06:52:17   (   0.32,-128.40) (   0.59,-127.15)  142.83                80
 10/30/2021   19:16:12   (  -0.31,-128.40) (   0.50,-132.31)  443.23                80
 11/01/2021   06:40:02   (   0.32,-128.42) (   1.20,-124.18)  481.12                80
 11/01/2021   19:03:57   (  -0.31,-128.42) (  -0.12,-129.34)  104.98                80