Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 2.  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)
 01/02/2021   18:45:39   (   0.12,-128.23) (   0.03,-127.92)   36.42                80
 01/04/2021   18:33:26   (   0.14,-128.22) (  -0.54,-124.95)  370.99                80
 01/05/2021   06:52:11   (  -0.10,-128.20) (  -0.50,-130.15)  222.16                80
 01/07/2021   06:42:38   (  -0.11,-128.17) (   0.07,-127.18)  111.87                80
 01/07/2021   19:01:14   (   0.07,-128.18) (   0.98,-132.35)  474.10                80
 01/09/2021   06:30:26   (  -0.11,-128.14) (   0.72,-124.23)  445.23                80
 01/09/2021   18:49:02   (   0.08,-128.15) (   0.34,-129.39)  140.97                80
 01/11/2021   18:39:29   (   0.08,-128.11) (  -0.24,-126.42)  191.56                80
 01/12/2021   06:58:14   (  -0.05,-128.08) (  -0.79,-131.63)  402.70                80
 01/14/2021   06:46:01   (  -0.06,-128.04) (  -0.20,-128.66)   70.29                80