Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 9 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/28/2021   06:55:40   (   0.37,-127.64) (   0.47,-127.14)   56.89                80
 09/30/2021   06:43:26   (   0.36,-127.56) (   1.07,-124.18)  384.08                80
 09/30/2021   19:02:01   (  -0.37,-127.50) (   0.02,-129.34)  208.60                80
 10/02/2021   18:52:27   (  -0.37,-127.41) (  -0.58,-126.38)  118.03                80
 10/03/2021   07:11:11   (   0.37,-127.42) (  -0.50,-131.57)  471.50                80
 10/04/2021   18:40:13   (  -0.36,-127.32) (  -1.19,-123.41)  444.32                80
 10/05/2021   06:58:57   (   0.37,-127.33) (   0.11,-128.61)  145.26                80
 10/07/2021   06:49:23   (   0.37,-127.23) (   0.73,-125.65)  180.54                80
 10/07/2021   19:07:56   (  -0.38,-127.18) (   0.42,-130.80)  412.45                80
 10/09/2021   18:55:43   (  -0.37,-127.07) (  -0.20,-127.84)   87.53                80