Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 6 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/24/2021   06:54:38   (   0.10,-128.37) (   0.36,-127.11)  142.79                80
 06/24/2021   19:15:52   (  -0.09,-128.34) (   0.74,-132.27)  446.73                80
 06/26/2021   06:42:25   (   0.11,-128.33) (   1.00,-124.16)  474.88                80
 06/26/2021   19:03:39   (  -0.10,-128.30) (   0.10,-129.31)  114.50                80
 06/28/2021   18:54:05   (  -0.11,-128.27) (  -0.49,-126.35)  217.71                80
 06/29/2021   07:15:29   (   0.10,-128.29) (  -0.60,-131.54)  370.43                80
 07/01/2021   07:03:16   (   0.11,-128.25) (   0.05,-128.59)   38.33                80
 07/03/2021   06:48:22   (   0.11,-128.21) (   0.64,-125.63)  293.59                80
 07/03/2021   19:09:37   (  -0.10,-128.17) (   0.45,-130.78)  297.39                80
 07/05/2021   19:00:03   (  -0.10,-128.12) (  -0.14,-127.82)   34.27                80