Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/24/2021   06:59:45   (   0.09,-127.95) (  -0.04,-128.58)   71.50                80
 12/26/2021   06:44:51   (   0.09,-128.01) (   0.61,-125.63)  270.94                80
 12/26/2021   19:08:45   (  -0.07,-128.02) (   0.53,-130.77)  313.10                80
 12/28/2021   18:53:51   (  -0.07,-128.08) (  -0.12,-127.82)   28.74                80
 12/30/2021   18:41:37   (  -0.08,-128.12) (  -0.78,-124.87)  369.76                80
 12/31/2021   07:05:40   (   0.06,-128.12) (  -0.34,-130.06)  219.66                80
 01/02/2022   06:50:45   (   0.07,-128.16) (   0.27,-127.09)  120.34                80
 01/02/2022   19:14:40   (  -0.05,-128.17) (   0.81,-132.26)  464.68                80
 01/04/2022   06:38:31   (   0.07,-128.19) (   0.94,-124.14)  460.02                80
 01/04/2022   19:02:25   (  -0.05,-128.20) (   0.19,-129.29)  124.97                80