Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 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)
 12/08/2020   18:49:08   (   0.20,-128.09) (   0.49,-129.38)  146.62                80
 12/10/2020   18:39:37   (   0.20,-128.13) (  -0.16,-126.43)  193.73                80
 12/11/2020   06:58:21   (  -0.18,-128.15) (  -0.90,-131.63)  394.63                80
 12/13/2020   06:46:10   (  -0.19,-128.18) (  -0.31,-128.66)   55.08                80
 12/15/2020   06:36:39   (  -0.19,-128.21) (   0.35,-125.71)  283.93                80
 12/15/2020   18:55:14   (   0.17,-128.20) (   0.71,-130.88)  303.57                80
 12/17/2020   18:45:42   (   0.18,-128.22) (   0.11,-127.91)   35.09                80
 12/19/2020   18:33:31   (   0.19,-128.24) (  -0.50,-124.95)  373.76                80
 12/20/2020   06:52:15   (  -0.17,-128.25) (  -0.55,-130.15)  215.44                80
 12/22/2020   06:42:43   (  -0.17,-128.27) (   0.06,-127.19)  123.11                80