Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 7 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/30/2021   18:50:49   (  -0.04,-127.81) (  -0.38,-126.31)  170.42                80
 07/31/2021   07:14:53   (   0.02,-127.90) (  -0.71,-131.51)  409.26                80
 08/02/2021   07:02:40   (   0.02,-127.96) (  -0.08,-128.55)   67.20                80
 08/04/2021   06:47:47   (   0.03,-128.01) (   0.56,-125.60)  274.21                80
 08/04/2021   19:11:41   (  -0.00,-127.94) (   0.60,-130.74)  319.20                80
 08/06/2021   18:56:48   (  -0.01,-127.98) (  -0.04,-127.79)   21.60                80
 08/08/2021   18:44:35   (  -0.02,-128.02) (  -0.69,-124.84)  361.90                80
 08/09/2021   07:08:39   (  -0.01,-128.12) (  -0.39,-130.03)  217.46                80
 08/11/2021   06:53:46   (   0.00,-128.15) (   0.26,-127.08)  122.27                80
 08/11/2021   19:17:40   (   0.03,-128.07) (   0.90,-132.22)  472.44                80