Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 7 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2021   18:57:02   (  -0.06,-127.50) (  -0.01,-127.77)   30.56                80
 07/23/2021   18:47:28   (  -0.07,-127.41) (  -0.63,-124.81)  295.78                80
 07/24/2021   07:08:50   (   0.05,-127.43) (  -0.51,-130.00)  291.72                80
 07/26/2021   06:53:56   (   0.06,-127.34) (   0.12,-127.04)   34.33                80
 07/28/2021   06:41:42   (   0.07,-127.25) (   0.74,-124.08)  360.53                80
 07/28/2021   19:05:36   (  -0.04,-127.17) (   0.41,-129.22)  233.38                80
 07/30/2021   18:50:42   (  -0.05,-127.08) (  -0.22,-126.26)   92.80                80
 07/31/2021   07:14:45   (   0.03,-127.11) (  -0.91,-131.45)  493.49                80
 08/01/2021   18:38:28   (  -0.06,-126.98) (  -0.85,-123.30)  418.53                80
 08/02/2021   07:02:31   (   0.03,-127.01) (  -0.28,-128.49)  168.03                80