Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 8 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/21/2021   07:33:19   (   0.03,-137.16) (   0.18,-136.33)   93.31                80
 08/21/2021   19:51:54   (  -0.03,-137.16) (   0.91,-141.49)  493.20                80
 08/23/2021   07:21:06   (   0.03,-137.14) (   0.84,-133.38)  427.30                80
 08/23/2021   19:39:41   (  -0.03,-137.14) (   0.25,-138.54)  159.12                80
 08/25/2021   19:30:07   (  -0.03,-137.12) (  -0.36,-135.58)  174.86                80
 08/26/2021   07:51:31   (   0.04,-137.11) (  -0.73,-140.77)  416.71                80
 08/28/2021   07:39:17   (   0.03,-137.08) (  -0.12,-137.81)   83.34                80
 08/30/2021   07:24:23   (   0.03,-137.04) (   0.50,-134.85)  249.32                80
 08/30/2021   19:45:37   (  -0.03,-137.04) (   0.59,-140.01)  337.79                80
 09/01/2021   19:33:24   (  -0.02,-136.99) (  -0.02,-137.05)    6.14                80