Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 13.  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)
 07/13/2021   18:42:40   (  -0.10,-127.83) (  -0.08,-127.94)   12.70                80
 07/15/2021   18:33:08   (  -0.10,-127.75) (  -0.67,-124.97)  315.68                80
 07/16/2021   06:54:32   (   0.09,-127.77) (  -0.40,-130.17)  272.42                80
 07/18/2021   06:39:41   (   0.09,-127.69) (   0.19,-127.20)   55.14                80
 07/20/2021   06:27:29   (   0.10,-127.60) (   0.79,-124.23)  382.00                80
 07/20/2021   18:48:43   (  -0.08,-127.53) (   0.33,-129.38)  210.77                80
 07/22/2021   18:36:32   (  -0.08,-127.44) (  -0.32,-126.43)  115.36                80
 07/23/2021   07:00:36   (   0.06,-127.46) (  -0.80,-131.62)  472.05                80
 07/24/2021   18:27:01   (  -0.09,-127.34) (  -0.92,-123.46)  441.10                80
 07/25/2021   06:48:24   (   0.07,-127.36) (  -0.20,-128.65)  146.39                80