Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 10 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/19/2021   19:35:11   (  -0.05,-137.20) (  -0.06,-137.07)   13.63                80
 10/21/2021   19:22:57   (  -0.05,-137.19) (  -0.71,-134.12)  349.00                80
 10/22/2021   07:44:20   (   0.05,-137.18) (  -0.42,-139.31)  241.88                80
 10/24/2021   07:29:26   (   0.04,-137.16) (   0.24,-136.35)   92.67                80
 10/24/2021   19:50:39   (  -0.04,-137.16) (   0.90,-141.50)  494.30                80
 10/26/2021   07:17:11   (   0.04,-137.13) (   0.84,-133.38)  426.43                80
 10/26/2021   19:38:26   (  -0.04,-137.13) (   0.24,-138.54)  160.69                80
 10/28/2021   19:28:51   (  -0.03,-137.09) (  -0.36,-135.58)  172.35                80
 10/29/2021   07:50:13   (   0.03,-137.08) (  -0.76,-140.77)  418.94                80
 10/31/2021   07:37:58   (   0.02,-137.04) (  -0.15,-137.80)   86.58                80