Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 22.  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)
 07/23/2021   07:00:41   (   0.05,-127.63) (  -0.83,-131.63)  455.60                80
 07/24/2021   18:27:07   (  -0.08,-127.61) (  -0.96,-123.49)  468.43                80
 07/25/2021   06:48:32   (   0.06,-127.70) (  -0.13,-128.69)  112.23                80
 07/27/2021   06:33:42   (   0.07,-127.77) (   0.52,-125.74)  231.16                80
 07/27/2021   18:57:36   (  -0.05,-127.71) (   0.62,-130.89)  360.64                80
 07/29/2021   18:45:27   (  -0.06,-127.79) (  -0.03,-127.94)   16.98                80
 07/31/2021   18:30:37   (  -0.07,-127.85) (  -0.68,-124.98)  326.34                80
 08/01/2021   06:54:40   (   0.04,-127.95) (  -0.46,-130.17)  252.98                80
 08/03/2021   06:39:50   (   0.05,-128.01) (   0.20,-127.22)   89.37                80
 08/05/2021   06:27:41   (   0.05,-128.06) (   0.86,-124.27)  431.10                80
 08/05/2021   18:51:35   (  -0.02,-127.99) (   0.28,-129.42)  162.35                80