Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/05/2021   18:48:22   (  -0.18,-128.08) (  -0.52,-126.37)  193.69                80
 12/06/2021   07:12:25   (   0.16,-128.04) (  -0.61,-131.56)  400.37                80
 12/08/2021   07:00:11   (   0.16,-127.98) (   0.05,-128.60)   70.59                80
 12/10/2021   06:45:16   (   0.15,-127.92) (   0.66,-125.64)  259.35                80
 12/10/2021   19:09:10   (  -0.14,-127.92) (   0.48,-130.79)  326.07                80
 12/12/2021   18:56:55   (  -0.14,-127.86) (  -0.14,-127.83)    3.92                80
 12/14/2021   18:42:00   (  -0.14,-127.80) (  -0.76,-124.86)  333.39                80
 12/15/2021   07:06:03   (   0.12,-127.76) (  -0.37,-130.05)  260.64                80
 12/17/2021   06:51:08   (   0.13,-127.69) (   0.26,-127.09)   68.23                80