Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 19.  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)
 12/20/2019   06:40:04   (   0.10,-128.02) (   0.24,-127.22)   90.82                80
 12/20/2019   19:03:58   (  -0.08,-128.00) (   0.88,-132.37)  497.29                80
 12/22/2019   06:27:53   (   0.10,-128.08) (   0.92,-124.27)  433.78                80
 12/22/2019   18:51:47   (  -0.09,-128.06) (   0.20,-129.42)  154.38                80
 12/24/2019   18:36:55   (  -0.09,-128.12) (  -0.42,-126.46)  188.04                80
 12/25/2019   07:00:59   (   0.08,-128.17) (  -0.70,-131.65)  396.48                80
 12/27/2019   06:48:48   (   0.07,-128.22) (  -0.01,-128.70)   54.57                80
 12/29/2019   06:33:56   (   0.07,-128.27) (   0.61,-125.75)  287.17                80
 12/29/2019   18:57:51   (  -0.06,-128.24) (   0.51,-130.90)  301.65                80
 12/31/2019   18:42:59   (  -0.06,-128.29) (  -0.12,-127.94)   39.95                80