Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 9 1.  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)
 09/01/2021   18:33:32   (  -0.26,-128.23) (  -0.96,-125.04)  362.60                80
 09/02/2021   06:52:17   (   0.29,-128.27) (  -0.10,-130.24)  223.81                80
 09/04/2021   06:42:46   (   0.29,-128.26) (   0.51,-127.28)  110.66                80
 09/04/2021   19:01:22   (  -0.32,-128.20) (   0.57,-132.44)  482.09                80
 09/06/2021   06:30:35   (   0.29,-128.24) (   1.12,-124.32)  444.75                80
 09/06/2021   18:49:11   (  -0.31,-128.18) (  -0.04,-129.48)  147.99                80
 09/08/2021   18:39:40   (  -0.31,-128.16) (  -0.66,-126.53)  185.67                80
 09/09/2021   06:58:24   (   0.34,-128.20) (  -0.40,-131.73)  400.45                80
 09/11/2021   06:46:13   (   0.33,-128.17) (   0.22,-128.77)   67.41                80
 09/13/2021   06:36:43   (   0.32,-128.13) (   0.84,-125.81)  264.84                80
 09/13/2021   18:55:17   (  -0.35,-128.07) (   0.30,-130.96)  328.91                80