Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2021   18:47:56   (  -0.11,-127.88) (  -0.45,-126.35)  174.62                80
 12/22/2021   07:11:59   (   0.09,-127.89) (  -0.69,-131.53)  414.20                80
 12/24/2021   06:59:45   (   0.09,-127.95) (  -0.05,-128.58)   71.55                80
 12/26/2021   06:44:51   (   0.09,-128.00) (   0.60,-125.62)  270.78                80
 12/26/2021   19:08:46   (  -0.07,-128.02) (   0.48,-130.78)  313.50                80
 12/28/2021   18:53:51   (  -0.07,-128.07) (  -0.11,-127.82)   28.32                80
 12/30/2021   18:41:37   (  -0.08,-128.11) (  -0.77,-124.87)  369.17                80
 12/31/2021   07:05:40   (   0.06,-128.12) (  -0.36,-130.05)  220.05                80
 01/02/2022   06:50:46   (   0.07,-128.15) (   0.31,-127.10)  119.86                80
 01/02/2022   19:14:39   (  -0.05,-128.16) (   0.83,-132.25)  465.43                80