Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 8.  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   07:00:11   (   0.15,-127.98) (   0.02,-128.60)   70.78                80
 12/10/2021   06:45:16   (   0.15,-127.91) (   0.62,-125.63)  258.88                80
 12/10/2021   19:09:10   (  -0.14,-127.92) (   0.45,-130.79)  326.52                80
 12/12/2021   18:54:16   (  -0.14,-127.86) (  -0.16,-127.83)    3.56                80
 12/14/2021   18:42:01   (  -0.14,-127.79) (  -0.77,-124.87)  332.51                80
 12/15/2021   07:06:03   (   0.12,-127.75) (  -0.35,-130.06)  261.69                80
 12/17/2021   06:51:08   (   0.13,-127.68) (   0.27,-127.09)   66.96                80
 12/19/2021   06:38:53   (   0.13,-127.60) (   0.89,-124.13)  395.01                80
 12/19/2021   19:02:47   (  -0.11,-127.60) (   0.24,-129.28)  191.11                80
 12/21/2021   18:47:52   (  -0.11,-127.51) (  -0.39,-126.32)  136.37                80