Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 9 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)
 09/30/2021   06:43:26   (   0.36,-127.65) (   1.10,-124.18)  394.52                80
 09/30/2021   19:02:01   (  -0.37,-127.67) (  -0.00,-129.34)  190.44                80
 10/02/2021   18:52:28   (  -0.37,-127.74) (  -0.67,-126.39)  153.92                80
 10/03/2021   07:13:52   (   0.37,-127.77) (  -0.41,-131.59)  434.08                80
 10/04/2021   18:40:14   (  -0.36,-127.81) (  -1.28,-123.43)  497.90                80
 10/05/2021   06:58:58   (   0.37,-127.84) (   0.20,-128.63)   90.17                80
 10/07/2021   06:49:24   (   0.37,-127.90) (   0.82,-125.67)  253.29                80
 10/07/2021   19:07:59   (  -0.38,-127.91) (   0.27,-130.83)  332.30                80
 10/09/2021   18:58:26   (  -0.37,-127.97) (  -0.41,-127.88)   10.43                80
 10/11/2021   18:46:12   (  -0.37,-128.02) (  -1.03,-124.92)  352.10                80
 10/12/2021   07:07:36   (   0.37,-128.04) (  -0.04,-130.12)  236.18                80