Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 2.  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)
 08/03/2021   06:39:50   (   0.04,-127.98) (   0.20,-127.22)   86.16                80
 08/05/2021   06:27:41   (   0.04,-128.02) (   0.85,-124.27)  427.03                80
 08/05/2021   18:51:35   (  -0.02,-127.96) (   0.28,-129.42)  165.58                80
 08/07/2021   18:36:45   (  -0.03,-128.00) (  -0.37,-126.47)  174.71                80
 08/08/2021   07:00:49   (  -0.00,-128.09) (  -0.76,-131.65)  405.22                80
 08/10/2021   06:48:39   (   0.01,-128.12) (  -0.10,-128.70)   65.55                80
 08/12/2021   06:33:48   (   0.02,-128.15) (   0.50,-125.74)  273.75                80
 08/12/2021   18:57:43   (   0.01,-128.08) (   0.64,-130.89)  320.21                80
 08/14/2021   18:42:53   (   0.00,-128.10) (  -0.03,-127.94)   18.63                80