Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 9 3.  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)
 09/04/2021   06:42:46   (   0.29,-128.26) (   0.51,-127.29)  110.89                80
 09/04/2021   19:01:22   (  -0.32,-128.21) (   0.57,-132.45)  481.76                80
 09/06/2021   06:30:35   (   0.29,-128.24) (   1.13,-124.33)  445.15                80
 09/06/2021   18:49:11   (  -0.31,-128.19) (  -0.05,-129.49)  147.48                80
 09/08/2021   18:39:40   (  -0.31,-128.17) (  -0.66,-126.53)  186.37                80
 09/09/2021   06:58:25   (   0.34,-128.21) (  -0.40,-131.73)  399.81                80
 09/11/2021   06:46:14   (   0.33,-128.18) (   0.22,-128.77)   66.60                80
 09/13/2021   06:36:43   (   0.32,-128.14) (   0.84,-125.81)  265.82                80
 09/13/2021   18:55:17   (  -0.35,-128.08) (   0.30,-130.96)  327.77                80
 09/15/2021   18:43:06   (  -0.34,-128.04) (  -0.33,-128.00)    4.18                80
 09/17/2021   18:33:36   (  -0.33,-127.99) (  -0.96,-125.04)  335.16                80