Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 8 21.  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   07:33:20   (   0.03,-137.19) (   0.23,-136.34)   96.52                80
 08/21/2021   19:51:54   (  -0.03,-137.19) (   0.86,-141.50)  489.69                80
 08/23/2021   07:18:26   (   0.03,-137.20) (   0.83,-133.38)  433.80                80
 08/23/2021   19:39:41   (  -0.03,-137.20) (   0.26,-138.54)  152.29                80
 08/25/2021   19:30:07   (  -0.03,-137.21) (  -0.35,-135.58)  185.05                80
 08/26/2021   07:51:30   (   0.04,-137.21) (  -0.73,-140.77)  405.16                80
 08/28/2021   07:39:16   (   0.03,-137.21) (  -0.12,-137.81)   68.53                80
 08/30/2021   07:24:23   (   0.03,-137.21) (   0.55,-134.86)  267.54                80
 08/30/2021   19:45:37   (  -0.03,-137.21) (   0.60,-140.01)  319.28                80
 09/01/2021   19:36:04   (  -0.02,-137.19) (  -0.08,-137.06)   16.15                80
 09/03/2021   19:23:49   (  -0.01,-137.17) (  -0.64,-134.09)  350.36                80