Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 7 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)
 07/15/2021   07:15:09   (   0.07,-127.81) (  -0.73,-131.50)  420.36                80
 07/16/2021   18:41:32   (  -0.09,-127.72) (  -1.03,-123.36)  495.53                80
 07/17/2021   07:02:55   (   0.08,-127.73) (  -0.12,-128.54)   92.36                80
 07/19/2021   06:48:01   (   0.08,-127.65) (   0.50,-125.58)  234.99                80
 07/19/2021   19:09:16   (  -0.06,-127.58) (   0.59,-130.74)  358.24                80
 07/21/2021   18:57:02   (  -0.07,-127.49) (  -0.03,-127.78)   31.81                80
 07/23/2021   18:47:27   (  -0.07,-127.40) (  -0.59,-124.80)  294.34                80
 07/24/2021   07:08:51   (   0.05,-127.42) (  -0.48,-130.00)  292.81                80
 07/26/2021   06:53:57   (   0.06,-127.33) (   0.14,-127.04)   32.99                80
 07/28/2021   06:41:43   (   0.07,-127.23) (   0.77,-124.08)  358.86                80
 07/28/2021   19:05:37   (  -0.05,-127.15) (   0.38,-129.23)  235.58                80