Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 9 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 09/08/2019   06:36:38   (   0.24,-128.24) (   0.77,-125.79)  279.21                80
 09/08/2019   18:55:14   (  -0.26,-128.26) (   0.31,-130.95)  305.28                80
 09/10/2019   18:45:43   (  -0.26,-128.22) (  -0.30,-127.99)   26.36                80
 09/12/2019   18:33:32   (  -0.25,-128.18) (  -0.90,-125.02)  357.79                80
 09/13/2019   06:52:17   (   0.28,-128.14) (  -0.16,-130.22)  237.35                80
 09/15/2019   06:42:46   (   0.28,-128.09) (   0.44,-127.26)   93.60                80
 09/15/2019   19:01:22   (  -0.29,-128.10) (   0.65,-132.42)  492.16                80
 09/17/2019   06:30:36   (   0.27,-128.04) (   1.10,-124.31)  424.12                80
 09/17/2019   18:49:12   (  -0.29,-128.05) (  -0.00,-129.47)  161.65                80
 09/19/2019   18:39:41   (  -0.28,-127.99) (  -0.59,-126.51)  168.12                80
 09/20/2019   06:58:26   (   0.30,-127.96) (  -0.47,-131.71)  426.30                80
 09/21/2019   18:27:30   (  -0.28,-127.92) (  -1.18,-123.55)  497.11                80