Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 9.  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)
 01/09/2021   06:30:26   (  -0.11,-128.15) (   0.72,-124.23)  446.22                80
 01/09/2021   18:49:02   (   0.08,-128.16) (   0.34,-129.39)  139.71                80
 01/11/2021   18:39:30   (   0.08,-128.13) (  -0.31,-126.44)  193.21                80
 01/12/2021   06:58:14   (  -0.05,-128.10) (  -0.79,-131.63)  401.24                80
 01/14/2021   06:46:01   (  -0.06,-128.06) (  -0.21,-128.66)   68.45                80
 01/16/2021   06:36:29   (  -0.07,-128.03) (   0.44,-125.70)  264.31                80
 01/16/2021   18:55:05   (   0.03,-128.04) (   0.61,-130.87)  321.16                80
 01/18/2021   18:45:32   (   0.04,-128.00) (   0.02,-127.90)   11.42                80
 01/20/2021   18:33:19   (   0.05,-127.96) (  -0.57,-124.93)  343.70                80
 01/21/2021   06:52:04   (  -0.01,-127.92) (  -0.46,-130.14)  251.58                80