Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 8 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/18/2021   07:02:24   (  -0.06,-128.26) (  -0.10,-128.55)   32.47                80
 08/20/2021   06:47:30   (  -0.05,-128.28) (   0.50,-125.58)  305.49                80
 08/20/2021   19:11:24   (   0.08,-128.19) (   0.59,-130.74)  289.16                80
 08/22/2021   18:56:30   (   0.07,-128.21) (  -0.01,-127.78)   48.86                80
 08/24/2021   18:44:18   (   0.06,-128.23) (  -0.67,-124.83)  386.90                80
 08/25/2021   07:08:20   (  -0.09,-128.32) (  -0.47,-130.01)  192.57                80
 08/27/2021   06:53:27   (  -0.08,-128.34) (   0.20,-127.06)  145.11                80
 08/27/2021   19:17:21   (   0.11,-128.25) (   0.95,-132.21)  450.24                80
 08/29/2021   06:41:13   (  -0.08,-128.35) (   0.81,-124.10)  482.38                80
 08/29/2021   19:05:07   (   0.11,-128.26) (   0.34,-129.25)  113.07                80
 08/31/2021   18:50:14   (   0.11,-128.26) (  -0.33,-126.30)  223.48                80