Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 26.  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)
 12/26/2020   18:39:35   (   0.16,-128.26) (  -0.20,-126.43)  207.95                80
 12/27/2020   06:58:20   (  -0.13,-128.26) (  -0.85,-131.63)  383.27                80
 12/29/2020   06:46:08   (  -0.14,-128.26) (  -0.23,-128.67)   47.52                80
 12/31/2020   06:36:36   (  -0.14,-128.24) (   0.40,-125.71)  287.56                80
 12/31/2020   18:55:11   (   0.12,-128.24) (   0.66,-130.88)  299.49                80
 01/02/2021   18:45:39   (   0.12,-128.22) (   0.03,-127.92)   35.14                80
 01/04/2021   18:33:27   (   0.14,-128.20) (  -0.54,-124.95)  369.20                80
 01/05/2021   06:52:11   (  -0.11,-128.19) (  -0.50,-130.15)  223.09                80
 01/07/2021   06:42:38   (  -0.11,-128.16) (   0.08,-127.18)  110.50                80
 01/07/2021   19:01:14   (   0.08,-128.16) (   0.98,-132.35)  476.54                80