Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2021   06:45:16   (   0.15,-127.91) (   0.65,-125.64)  258.73                80
 12/10/2021   19:09:10   (  -0.13,-127.92) (   0.49,-130.79)  326.58                80
 12/12/2021   18:56:55   (  -0.14,-127.85) (  -0.12,-127.82)    3.81                80
 12/14/2021   18:42:00   (  -0.14,-127.79) (  -0.73,-124.86)  332.24                80
 12/15/2021   07:06:03   (   0.12,-127.75) (  -0.39,-130.05)  262.12                80
 12/17/2021   06:51:08   (   0.13,-127.67) (   0.22,-127.09)   66.45                80
 12/19/2021   06:38:53   (   0.13,-127.60) (   0.85,-124.12)  394.34                80
 12/19/2021   19:02:48   (  -0.11,-127.59) (   0.23,-129.29)  191.71                80
 12/21/2021   18:47:52   (  -0.11,-127.51) (  -0.34,-126.31)  135.66                80
 12/22/2021   07:11:54   (   0.09,-127.47) (  -0.78,-131.50)  458.95                80