Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/06/2021   07:12:26   (   0.16,-128.04) (  -0.57,-131.57)  400.40                80
 12/08/2021   07:00:11   (   0.16,-127.98) (   0.03,-128.60)   70.61                80
 12/10/2021   06:45:16   (   0.15,-127.92) (   0.64,-125.64)  259.21                80
 12/10/2021   19:09:10   (  -0.14,-127.92) (   0.50,-130.78)  326.25                80
 12/12/2021   18:56:55   (  -0.14,-127.86) (  -0.12,-127.82)    4.78                80
 12/14/2021   18:42:00   (  -0.14,-127.80) (  -0.73,-124.86)  333.14                80
 12/15/2021   07:06:03   (   0.12,-127.76) (  -0.39,-130.05)  260.93                80
 12/17/2021   06:51:08   (   0.13,-127.69) (   0.23,-127.09)   67.92                80
 12/19/2021   06:38:53   (   0.13,-127.61) (   0.86,-124.13)  396.13                80
 12/19/2021   19:02:46   (  -0.11,-127.61) (   0.27,-129.27)  190.05                80