Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 3.  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   06:39:51   (   0.04,-127.98) (   0.23,-127.22)   86.25                80
 08/05/2021   06:27:40   (   0.04,-128.02) (   0.82,-124.26)  427.05                80
 08/05/2021   18:51:35   (  -0.02,-127.96) (   0.31,-129.41)  165.52                80
 08/07/2021   18:36:45   (  -0.03,-128.00) (  -0.35,-126.46)  174.75                80
 08/08/2021   07:00:49   (  -0.00,-128.09) (  -0.79,-131.64)  405.24                80
 08/10/2021   06:48:39   (   0.01,-128.12) (  -0.13,-128.70)   65.56                80
 08/12/2021   06:33:49   (   0.02,-128.15) (   0.54,-125.75)  273.71                80
 08/12/2021   18:57:44   (   0.01,-128.08) (   0.60,-130.89)  320.14                80
 08/14/2021   18:45:33   (   0.00,-128.10) (  -0.00,-127.93)   18.95                80
 08/16/2021   18:30:43   (  -0.00,-128.12) (  -0.67,-124.98)  356.75                80