Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 13.  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   06:34:00   (   0.13,-128.06) (   0.60,-125.75)  262.34                80
 12/13/2019   18:57:56   (  -0.12,-128.04) (   0.46,-130.91)  326.29                80
 12/15/2019   18:43:04   (  -0.12,-127.97) (  -0.14,-127.95)    3.37                80
 12/17/2019   18:30:52   (  -0.11,-127.90) (  -0.75,-124.99)  330.87                80
 12/18/2019   06:54:56   (   0.10,-127.89) (  -0.37,-130.18)  260.28                80
 12/20/2019   06:40:04   (   0.10,-127.81) (   0.24,-127.22)   67.67                80
 12/22/2019   06:27:52   (   0.10,-127.73) (   0.85,-124.26)  395.21                80
 12/22/2019   18:51:47   (  -0.09,-127.70) (   0.27,-129.41)  194.33                80
 12/24/2019   18:36:55   (  -0.09,-127.61) (  -0.34,-126.44)  132.64                80
 12/25/2019   07:00:58   (   0.08,-127.60) (  -0.77,-131.64)  458.38                80
 12/26/2019   18:27:23   (  -0.09,-127.52) (  -0.95,-123.48)  459.22                80