Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 12 20.  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) (   0.30,-127.23)   90.82                80
 12/20/2019   19:03:59   (  -0.08,-128.00) (   0.82,-132.38)  497.32                80
 12/22/2019   06:27:52   (   0.10,-128.08) (   0.91,-124.27)  433.73                80
 12/22/2019   18:51:47   (  -0.09,-128.06) (   0.21,-129.42)  154.44                80
 12/24/2019   18:36:55   (  -0.09,-128.12) (  -0.41,-126.46)  187.95                80
 12/25/2019   07:01:00   (   0.08,-128.17) (  -0.64,-131.66)  396.60                80
 12/27/2019   06:48:48   (   0.07,-128.22) (  -0.02,-128.70)   54.72                80
 12/29/2019   06:33:56   (   0.07,-128.27) (   0.61,-125.74)  286.98                80
 12/29/2019   18:57:51   (  -0.06,-128.24) (   0.51,-130.90)  301.81                80
 12/31/2019   18:42:59   (  -0.06,-128.29) (  -0.12,-127.94)   39.75                80
 01/02/2020   18:30:47   (  -0.06,-128.33) (  -0.75,-124.98)  381.02                80