Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2021   06:54:20   (   0.09,-127.98) (   0.31,-127.09)  101.73                80
 07/10/2021   19:15:33   (  -0.08,-127.93) (   0.84,-132.24)  490.37                80
 07/12/2021   06:42:06   (   0.10,-127.91) (   0.91,-124.13)  429.98                80
 07/12/2021   19:03:20   (  -0.09,-127.86) (   0.24,-129.28)  162.02                80
 07/14/2021   18:53:47   (  -0.09,-127.78) (  -0.43,-126.33)  166.10                80
 07/15/2021   07:15:09   (   0.08,-127.80) (  -0.71,-131.51)  421.43                80
 07/16/2021   18:41:33   (  -0.10,-127.70) (  -1.05,-123.36)  493.82                80
 07/17/2021   07:02:55   (   0.08,-127.72) (  -0.09,-128.55)   93.92                80
 07/19/2021   06:48:01   (   0.09,-127.63) (   0.53,-125.59)  232.89                80
 07/19/2021   19:11:55   (  -0.07,-127.56) (   0.63,-130.73)  360.71                80
 07/21/2021   18:59:41   (  -0.07,-127.47) (   0.01,-127.77)   34.71                80