Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 7 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/14/2021   18:53:46   (  -0.09,-127.79) (  -0.41,-126.32)  167.11                80
 07/15/2021   07:15:09   (   0.07,-127.81) (  -0.73,-131.51)  420.45                80
 07/16/2021   18:41:32   (  -0.10,-127.71) (  -1.03,-123.36)  495.26                80
 07/17/2021   07:02:55   (   0.08,-127.73) (  -0.11,-128.54)   92.55                80
 07/19/2021   06:48:01   (   0.08,-127.65) (   0.50,-125.58)  234.67                80
 07/19/2021   19:09:16   (  -0.06,-127.58) (   0.58,-130.74)  358.67                80
 07/21/2021   18:57:02   (  -0.07,-127.49) (  -0.04,-127.78)   32.38                80
 07/23/2021   18:47:27   (  -0.07,-127.39) (  -0.60,-124.81)  293.69                80
 07/24/2021   07:08:51   (   0.05,-127.42) (  -0.48,-130.00)  293.41                80
 07/26/2021   06:53:57   (   0.07,-127.32) (   0.15,-127.04)   32.35                80