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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/15/2021   07:03:32   (   0.10,-128.46) (   0.07,-128.59)   14.85                80
 06/17/2021   06:48:39   (   0.10,-128.45) (   0.70,-125.64)  319.24                80
 06/17/2021   19:09:54   (  -0.10,-128.42) (   0.40,-130.79)  269.64                80
 06/19/2021   19:00:21   (  -0.10,-128.40) (  -0.23,-127.84)   64.26                80
 06/21/2021   18:48:08   (  -0.10,-128.38) (  -0.86,-124.88)  397.57                80
 06/22/2021   07:09:31   (   0.10,-128.39) (  -0.23,-130.08)  190.87                80
 06/24/2021   06:54:38   (   0.10,-128.36) (   0.35,-127.11)  141.19                80
 06/24/2021   19:15:52   (  -0.10,-128.31) (   0.75,-132.27)  449.72                80
 06/26/2021   06:42:25   (   0.11,-128.32) (   0.99,-124.16)  472.68                80
 06/26/2021   19:03:39   (  -0.10,-128.27) (   0.11,-129.31)  118.11                80
 06/28/2021   18:54:06   (  -0.11,-128.23) (  -0.54,-126.36)  213.45                80