Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 1 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/01/2021   06:47:13   (  -0.13,-128.23) (   0.73,-124.10)  469.19                80
 01/01/2021   19:05:49   (   0.10,-128.24) (   0.33,-129.27)  116.90                80
 01/03/2021   18:56:17   (   0.11,-128.22) (  -0.29,-126.31)  217.46                80
 01/04/2021   07:15:01   (  -0.07,-128.20) (  -0.76,-131.51)  375.98                80
 01/06/2021   07:02:49   (  -0.08,-128.18) (  -0.19,-128.54)   42.15                80
 01/08/2021   06:53:17   (  -0.08,-128.15) (   0.44,-125.59)  291.21                80
 01/08/2021   19:11:52   (   0.05,-128.16) (   0.62,-130.75)  294.87                80
 01/10/2021   19:02:20   (   0.05,-128.13) (  -0.02,-127.80)   37.45                80
 01/12/2021   18:50:07   (   0.06,-128.09) (  -0.60,-124.83)  369.46                80
 01/13/2021   07:08:52   (  -0.03,-128.06) (  -0.44,-130.04)  225.05                80