Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 6 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/26/2021   06:42:24   (   0.11,-128.33) (   0.98,-124.15)  474.61                80
 06/26/2021   19:03:39   (  -0.10,-128.30) (   0.12,-129.31)  114.47                80
 06/28/2021   18:54:06   (  -0.11,-128.27) (  -0.53,-126.36)  217.61                80
 06/29/2021   07:15:30   (   0.10,-128.28) (  -0.56,-131.55)  370.85                80
 07/01/2021   07:03:16   (   0.11,-128.25) (   0.03,-128.59)   38.82                80
 07/03/2021   06:48:23   (   0.11,-128.21) (   0.68,-125.63)  292.99                80
 07/03/2021   19:09:37   (  -0.10,-128.16) (   0.48,-130.78)  297.72                80
 07/05/2021   19:00:04   (  -0.10,-128.12) (  -0.18,-127.83)   33.75                80
 07/07/2021   18:47:50   (  -0.11,-128.07) (  -0.77,-124.86)  364.50                80
 07/08/2021   07:09:14   (   0.09,-128.09) (  -0.31,-130.06)  223.01                80