Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 5.  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   18:48:23   (  -0.18,-128.08) (  -0.56,-126.38)  193.65                80
 12/06/2021   07:12:26   (   0.16,-128.04) (  -0.57,-131.56)  400.37                80
 12/08/2021   07:00:11   (   0.16,-127.98) (   0.03,-128.60)   70.55                80
 12/10/2021   06:45:16   (   0.15,-127.92) (   0.63,-125.64)  259.30                80
 12/10/2021   19:09:11   (  -0.14,-127.92) (   0.44,-130.80)  326.16                80
 12/12/2021   18:54:16   (  -0.14,-127.86) (  -0.17,-127.83)    4.54                80
 12/14/2021   18:42:01   (  -0.14,-127.80) (  -0.78,-124.87)  333.28                80
 12/15/2021   07:06:04   (   0.12,-127.76) (  -0.34,-130.06)  260.77                80
 12/17/2021   06:51:09   (   0.13,-127.69) (   0.28,-127.10)   68.15                80