Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 4.  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)
 01/04/2021   18:33:27   (   0.14,-128.22) (  -0.57,-124.96)  371.27                80
 01/05/2021   06:52:11   (  -0.10,-128.20) (  -0.53,-130.15)  221.94                80
 01/07/2021   06:42:39   (  -0.11,-128.18) (   0.11,-127.19)  112.25                80
 01/07/2021   19:01:15   (   0.07,-128.19) (   0.95,-132.35)  473.47                80
 01/09/2021   06:30:27   (  -0.11,-128.15) (   0.75,-124.23)  445.86                80
 01/09/2021   18:49:02   (   0.08,-128.16) (   0.37,-129.38)  140.19                80
 01/11/2021   18:39:30   (   0.08,-128.12) (  -0.27,-126.43)  192.54                80
 01/12/2021   06:58:13   (  -0.05,-128.09) (  -0.83,-131.62)  401.82                80
 01/14/2021   06:46:01   (  -0.06,-128.05) (  -0.18,-128.67)   69.23                80
 01/16/2021   06:36:29   (  -0.07,-128.02) (   0.42,-125.70)  263.32                80
 01/16/2021   18:55:04   (   0.03,-128.03) (   0.64,-130.86)  322.37                80