Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 9 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/07/2021   18:59:00   (  -0.33,-128.18) (  -0.40,-127.86)   36.24                80
 09/09/2021   18:46:47   (  -0.33,-128.16) (  -1.03,-124.91)  370.11                80
 09/10/2021   07:05:30   (   0.35,-128.21) (  -0.07,-130.10)  216.04                80
 09/12/2021   06:55:57   (   0.34,-128.18) (   0.56,-127.15)  116.92                80
 09/12/2021   19:14:32   (  -0.36,-128.12) (   0.54,-132.31)  476.73                80
 09/14/2021   06:43:45   (   0.33,-128.14) (   1.20,-124.19)  449.12                80
 09/14/2021   19:02:19   (  -0.35,-128.08) (  -0.10,-129.35)  144.65                80
 09/16/2021   18:52:45   (  -0.35,-128.03) (  -0.67,-126.39)  186.93                80
 09/17/2021   07:11:30   (   0.36,-128.08) (  -0.35,-131.59)  399.28                80
 09/19/2021   06:59:16   (   0.36,-128.03) (   0.23,-128.63)   67.72                80