Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 27.  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)
 07/27/2021   06:33:42   (   0.07,-127.76) (   0.52,-125.74)  230.58                80
 07/27/2021   18:57:37   (  -0.05,-127.71) (   0.61,-130.89)  360.86                80
 07/29/2021   18:42:47   (  -0.06,-127.78) (  -0.03,-127.94)   17.62                80
 07/31/2021   18:30:37   (  -0.06,-127.84) (  -0.68,-124.98)  325.35                80
 08/01/2021   06:54:40   (   0.04,-127.93) (  -0.45,-130.17)  254.57                80
 08/03/2021   06:39:51   (   0.04,-127.99) (   0.20,-127.22)   87.37                80
 08/05/2021   06:27:41   (   0.05,-128.04) (   0.86,-124.27)  428.72                80
 08/05/2021   18:51:35   (  -0.02,-127.97) (   0.28,-129.42)  164.30                80
 08/07/2021   18:36:45   (  -0.03,-128.02) (  -0.38,-126.47)  176.49                80
 08/08/2021   07:00:49   (   0.00,-128.11) (  -0.75,-131.65)  402.68                80