Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 23.  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)
 12/24/2020   06:30:31   (  -0.18,-128.27) (   0.66,-124.23)  458.60                80
 12/24/2020   18:49:07   (   0.16,-128.26) (   0.40,-129.39)  128.78                80
 12/26/2020   18:39:35   (   0.16,-128.26) (  -0.22,-126.43)  207.78                80
 12/27/2020   06:58:20   (  -0.13,-128.27) (  -0.83,-131.64)  382.92                80
 12/29/2020   06:46:08   (  -0.14,-128.26) (  -0.20,-128.68)   47.12                80
 12/31/2020   06:36:36   (  -0.14,-128.25) (   0.42,-125.72)  288.12                80
 12/31/2020   18:55:11   (   0.12,-128.24) (   0.70,-130.87)  299.40                80
 01/02/2021   18:45:39   (   0.12,-128.22) (   0.07,-127.91)   35.20                80
 01/04/2021   18:33:27   (   0.14,-128.20) (  -0.56,-124.95)  369.46                80
 01/05/2021   06:52:11   (  -0.11,-128.19) (  -0.54,-130.14)  222.33                80