Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 7 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)
 07/19/2021   06:48:01   (   0.08,-127.65) (   0.50,-125.58)  235.31                80
 07/19/2021   19:09:16   (  -0.06,-127.59) (   0.59,-130.74)  357.59                80
 07/21/2021   18:57:02   (  -0.06,-127.50) (  -0.03,-127.78)   30.88                80
 07/23/2021   18:47:02   (  -0.07,-127.41) (  -0.65,-124.82)  295.49                54
 07/24/2021   07:08:51   (   0.05,-127.43) (  -0.49,-130.00)  291.83                80
 07/26/2021   06:53:57   (   0.06,-127.34) (   0.14,-127.04)   34.17                80
 07/28/2021   06:41:43   (   0.07,-127.24) (   0.76,-124.08)  360.31                80
 07/28/2021   19:05:37   (  -0.05,-127.17) (   0.39,-129.23)  233.82                80
 07/30/2021   18:50:43   (  -0.05,-127.07) (  -0.24,-126.27)   92.31                80
 07/31/2021   07:14:45   (   0.03,-127.11) (  -0.89,-131.45)  493.82                80