Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/08/2021   07:00:10   (   0.16,-127.98) (  -0.00,-128.59)   70.76                80
 12/10/2021   06:45:16   (   0.15,-127.91) (   0.66,-125.64)  259.08                80
 12/10/2021   19:09:10   (  -0.14,-127.92) (   0.47,-130.79)  326.37                80
 12/12/2021   18:54:15   (  -0.14,-127.86) (  -0.14,-127.83)    3.42                80
 12/14/2021   18:42:00   (  -0.14,-127.79) (  -0.76,-124.86)  332.86                80
 12/15/2021   07:06:03   (   0.12,-127.76) (  -0.37,-130.05)  261.23                80
 12/17/2021   06:51:08   (   0.13,-127.68) (   0.26,-127.09)   67.50                80
 12/19/2021   06:38:53   (   0.13,-127.61) (   0.88,-124.13)  395.69                80
 12/19/2021   19:02:47   (  -0.11,-127.60) (   0.25,-129.28)  190.46                80