Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 6 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/21/2021   18:48:07   (  -0.10,-128.39) (  -0.84,-124.88)  399.30                80
 06/22/2021   07:09:31   (   0.10,-128.40) (  -0.25,-130.07)  189.68                80
 06/24/2021   06:54:38   (   0.10,-128.37) (   0.39,-127.12)  142.87                80
 06/24/2021   19:15:52   (  -0.09,-128.34) (   0.77,-132.26)  447.23                80
 06/26/2021   06:42:24   (   0.11,-128.33) (   0.97,-124.15)  474.84                80
 06/26/2021   19:03:39   (  -0.10,-128.30) (   0.13,-129.31)  115.10                80
 06/28/2021   18:54:06   (  -0.11,-128.26) (  -0.51,-126.36)  216.96                80
 06/29/2021   07:15:30   (   0.10,-128.29) (  -0.57,-131.55)  370.71                80
 07/01/2021   07:03:16   (   0.11,-128.25) (   0.02,-128.59)   38.78                80
 07/03/2021   06:48:23   (   0.12,-128.21) (   0.67,-125.63)  293.08                80