Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 3 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 03/15/2021   19:01:40   (   0.16,-128.45) (   0.03,-127.78)   75.31                80
 03/17/2021   18:49:27   (   0.16,-128.45) (  -0.59,-124.82)  412.28                80
 03/18/2021   07:10:51   (  -0.15,-128.37) (  -0.51,-130.02)  186.70                80
 03/20/2021   06:55:58   (  -0.15,-128.37) (   0.12,-127.06)  149.27                80
 03/20/2021   19:17:13   (   0.15,-128.45) (   0.93,-132.23)  429.02                80
 03/22/2021   06:43:45   (  -0.14,-128.36) (   0.74,-124.10)  484.56                80
 03/22/2021   19:05:01   (   0.14,-128.44) (   0.30,-129.27)   93.82                80
 03/24/2021   18:55:28   (   0.14,-128.43) (  -0.33,-126.31)  240.92                80
 03/25/2021   07:16:50   (  -0.13,-128.35) (  -0.82,-131.49)  357.86                80
 03/27/2021   07:04:37   (  -0.13,-128.33) (  -0.18,-128.54)   23.57                80