Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 14.  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)
 07/15/2021   18:33:08   (  -0.10,-127.75) (  -0.68,-124.97)  315.88                80
 07/16/2021   06:54:32   (   0.09,-127.77) (  -0.45,-130.16)  272.25                80
 07/18/2021   06:39:41   (   0.09,-127.69) (   0.20,-127.20)   55.41                80
 07/20/2021   06:27:29   (   0.10,-127.60) (   0.79,-124.24)  382.37                80
 07/20/2021   18:48:43   (  -0.08,-127.54) (   0.33,-129.39)  210.30                80
 07/22/2021   18:36:33   (  -0.08,-127.44) (  -0.33,-126.43)  115.95                80
 07/23/2021   07:00:36   (   0.06,-127.47) (  -0.79,-131.62)  471.52                80
 07/24/2021   18:27:01   (  -0.09,-127.35) (  -0.92,-123.46)  441.77                80
 07/25/2021   06:48:24   (   0.07,-127.37) (  -0.19,-128.65)  145.76                80
 07/27/2021   06:33:32   (   0.08,-127.27) (   0.41,-125.69)  180.01                80
 07/27/2021   18:57:27   (  -0.06,-127.19) (   0.72,-130.83)  413.93                80