Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 7.  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)
 10/08/2021   06:30:43   (   0.36,-127.95) (   1.11,-124.33)  410.65                80
 10/08/2021   18:49:19   (  -0.37,-127.96) (  -0.03,-129.50)  174.84                80
 10/10/2021   18:39:48   (  -0.37,-128.02) (  -0.65,-126.54)  167.82                80
 10/11/2021   07:01:13   (   0.37,-128.04) (  -0.42,-131.74)  420.20                80
 10/13/2021   06:49:02   (   0.36,-128.09) (   0.21,-128.78)   78.38                80
 10/15/2021   06:34:11   (   0.35,-128.14) (   0.83,-125.82)  263.26                80
 10/15/2021   18:55:27   (  -0.36,-128.14) (   0.25,-130.98)  322.80                80
 10/17/2021   18:45:56   (  -0.35,-128.19) (  -0.38,-128.03)   18.91                80
 10/19/2021   18:33:45   (  -0.35,-128.24) (  -1.01,-125.07)  360.46                80
 10/20/2021   06:55:10   (   0.35,-128.27) (  -0.04,-130.27)  227.35                80