Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 8 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/14/2021   07:27:22   (   0.03,-137.18) (   0.55,-134.87)  264.23                80
 08/14/2021   19:45:57   (  -0.03,-137.19) (   0.55,-140.02)  322.00                80
 08/16/2021   19:36:23   (  -0.02,-137.17) (  -0.05,-137.06)   12.22                80
 08/18/2021   19:24:09   (  -0.02,-137.14) (  -0.64,-134.10)  345.54                80
 08/19/2021   07:42:52   (   0.02,-137.13) (  -0.44,-139.29)  246.46                80
 08/21/2021   07:30:39   (   0.02,-137.09) (   0.16,-136.33)   86.32                80
 08/23/2021   07:18:26   (   0.02,-137.06) (   0.82,-133.38)  419.10                80
 08/23/2021   19:39:40   (  -0.02,-137.06) (   0.27,-138.54)  167.67                80
 08/25/2021   19:30:06   (  -0.02,-137.02) (  -0.34,-135.57)  164.84                80
 08/26/2021   07:51:29   (   0.02,-137.01) (  -0.80,-140.76)  427.09                80