Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 12.  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)
 12/13/2019   06:34:01   (   0.13,-128.06) (   0.65,-125.76)  262.28                80
 12/13/2019   18:57:56   (  -0.12,-128.04) (   0.47,-130.91)  326.57                80
 12/15/2019   18:43:04   (  -0.12,-127.97) (  -0.13,-127.95)    2.66                80
 12/17/2019   18:30:52   (  -0.11,-127.89) (  -0.74,-124.99)  330.35                80
 12/18/2019   06:54:56   (   0.10,-127.88) (  -0.38,-130.18)  260.62                80
 12/20/2019   06:40:04   (   0.10,-127.81) (   0.23,-127.22)   67.19                80
 12/22/2019   06:27:52   (   0.10,-127.72) (   0.84,-124.25)  394.63                80
 12/22/2019   18:51:47   (  -0.09,-127.69) (   0.28,-129.40)  195.14                80
 12/24/2019   18:36:55   (  -0.09,-127.60) (  -0.33,-126.44)  131.72                80
 12/25/2019   07:00:58   (   0.08,-127.60) (  -0.78,-131.63)  459.13                80