Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 6 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)
 06/10/2021   06:42:39   (   0.09,-128.48) (   1.02,-124.16)  491.84                80
 06/10/2021   19:03:54   (  -0.09,-128.47) (   0.08,-129.31)   95.45                80
 06/12/2021   18:54:21   (  -0.09,-128.46) (  -0.54,-126.36)  239.52                80
 06/13/2021   07:15:45   (   0.09,-128.48) (  -0.56,-131.55)  349.61                80
 06/15/2021   07:03:32   (   0.10,-128.46) (   0.07,-128.59)   15.45                80
 06/17/2021   06:48:39   (   0.10,-128.44) (   0.69,-125.64)  318.34                80
 06/17/2021   19:09:54   (  -0.10,-128.41) (   0.41,-130.80)  270.83                80
 06/19/2021   19:00:21   (  -0.10,-128.39) (  -0.22,-127.84)   62.75                80
 06/21/2021   18:48:08   (  -0.10,-128.36) (  -0.85,-124.88)  395.74                80
 06/22/2021   07:09:31   (   0.10,-128.38) (  -0.23,-130.08)  192.59                80