Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 15.  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)
 08/16/2021   18:30:42   (   0.01,-128.16) (  -0.64,-124.98)  361.46                80
 08/17/2021   06:54:47   (  -0.04,-128.25) (  -0.43,-130.18)  218.56                80
 08/19/2021   06:39:56   (  -0.03,-128.27) (   0.18,-127.22)  119.45                80
 08/19/2021   19:03:51   (   0.06,-128.19) (   0.95,-132.36)  475.03                80
 08/21/2021   06:27:46   (  -0.02,-128.28) (   0.86,-124.27)  457.28                80
 08/21/2021   18:51:40   (   0.06,-128.20) (   0.34,-129.40)  137.14                80
 08/23/2021   18:36:50   (   0.04,-128.22) (  -0.34,-126.46)  200.81                80
 08/24/2021   07:00:53   (  -0.08,-128.32) (  -0.78,-131.64)  378.51                80
 08/26/2021   06:48:43   (  -0.07,-128.33) (  -0.16,-128.69)   40.73                80
 08/28/2021   06:33:53   (  -0.06,-128.34) (   0.52,-125.74)  296.70                80
 08/28/2021   18:57:46   (   0.09,-128.25) (   0.68,-130.87)  298.63                80