Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 5 5.  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)
 05/05/2021   18:26:36   (   0.02,-127.85) (  -0.90,-123.50)  494.21                80
 05/06/2021   06:47:59   (  -0.01,-127.83) (  -0.20,-128.69)   98.80                80
 05/08/2021   06:33:06   (  -0.01,-127.90) (   0.42,-125.73)  245.56                80
 05/08/2021   18:54:22   (   0.01,-127.95) (   0.63,-130.90)  335.09                80
 05/10/2021   18:44:49   (   0.01,-128.03) (   0.01,-127.94)    9.31                80
 05/12/2021   18:32:37   (   0.01,-128.09) (  -0.66,-125.00)  352.54                80
 05/13/2021   06:54:01   (  -0.01,-128.08) (  -0.43,-130.19)  239.40                80
 05/15/2021   06:39:08   (  -0.01,-128.13) (   0.19,-127.23)  102.96                80
 05/15/2021   19:00:23   (   0.00,-128.17) (   0.91,-132.39)  479.78                80
 05/17/2021   06:26:55   (  -0.01,-128.18) (   0.82,-124.27)  444.66                80
 05/17/2021   18:48:11   (   0.00,-128.22) (   0.23,-129.44)  138.03                80