Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2020 12 31.  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)  469.16                80
 01/01/2021   19:05:49   (   0.10,-128.24) (   0.33,-129.27)  117.04                80
 01/03/2021   18:56:17   (   0.11,-128.22) (  -0.30,-126.31)  217.21                80
 01/04/2021   07:15:02   (  -0.07,-128.20) (  -0.75,-131.52)  376.13                80
 01/06/2021   07:02:49   (  -0.08,-128.18) (  -0.18,-128.55)   42.32                80
 01/08/2021   06:53:17   (  -0.08,-128.15) (   0.45,-125.59)  290.89                80
 01/08/2021   19:11:53   (   0.05,-128.16) (   0.61,-130.76)  295.33                80
 01/10/2021   19:02:21   (   0.05,-128.12) (  -0.03,-127.80)   36.92                80
 01/12/2021   18:50:08   (   0.06,-128.08) (  -0.61,-124.83)  368.82                80
 01/13/2021   07:08:52   (  -0.03,-128.05) (  -0.43,-130.04)  225.57                80