Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 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)
 04/16/2021   19:01:18   (   0.08,-128.01) (   0.01,-127.80)   24.22                80
 04/18/2021   18:49:05   (   0.08,-127.94) (  -0.59,-124.84)  352.77                80
 04/19/2021   07:10:28   (  -0.07,-127.85) (  -0.51,-130.03)  247.21                80
 04/21/2021   06:55:36   (  -0.07,-127.78) (   0.10,-127.07)   80.72                80
 04/23/2021   06:43:23   (  -0.07,-127.70) (   0.72,-124.11)  408.32                80
 04/23/2021   19:04:37   (   0.06,-127.74) (   0.39,-129.27)  173.71                80
 04/25/2021   18:55:04   (   0.06,-127.66) (  -0.23,-126.31)  153.60                80
 04/26/2021   07:16:28   (  -0.05,-127.58) (  -0.87,-131.51)  445.38                80
 04/27/2021   18:42:51   (   0.06,-127.57) (  -0.85,-123.35)  480.33                80
 04/28/2021   07:04:14   (  -0.06,-127.49) (  -0.30,-128.54)  119.05                80