Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 6 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/26/2021   06:42:25   (   0.11,-128.33) (   1.00,-124.16)  474.47                80
 06/26/2021   19:03:39   (  -0.10,-128.30) (   0.10,-129.31)  114.48                80
 06/28/2021   18:54:05   (  -0.11,-128.27) (  -0.49,-126.35)  217.53                80
 06/29/2021   07:15:29   (   0.10,-128.28) (  -0.60,-131.54)  371.12                80
 07/01/2021   07:03:16   (   0.11,-128.24) (   0.05,-128.59)   39.22                80
 07/03/2021   06:48:22   (   0.11,-128.20) (   0.64,-125.63)  292.51                80
 07/03/2021   19:09:37   (  -0.10,-128.16) (   0.45,-130.78)  298.04                80
 07/05/2021   19:00:03   (  -0.10,-128.12) (  -0.14,-127.82)   33.40                80
 07/07/2021   18:47:50   (  -0.11,-128.06) (  -0.80,-124.87)  363.97                80
 07/08/2021   07:09:13   (   0.09,-128.09) (  -0.34,-130.05)  223.73                80