Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 3 17.  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)
 03/17/2021   07:00:31   (  -0.16,-128.37) (  -0.85,-131.61)  368.47                80
 03/19/2021   06:48:18   (  -0.15,-128.37) (  -0.24,-128.65)   32.22                80
 03/21/2021   06:33:26   (  -0.15,-128.37) (   0.43,-125.70)  303.59                80
 03/21/2021   18:54:41   (   0.15,-128.44) (   0.67,-130.85)  274.38                80
 03/23/2021   18:45:08   (   0.14,-128.43) (   0.05,-127.89)   60.64                80
 03/25/2021   18:32:56   (   0.14,-128.41) (  -0.63,-124.94)  395.22                80
 03/26/2021   06:54:19   (  -0.14,-128.33) (  -0.53,-130.13)  203.97                80
 03/28/2021   06:39:26   (  -0.14,-128.31) (   0.10,-127.17)  130.22                80
 03/28/2021   19:00:41   (   0.14,-128.38) (   0.95,-132.33)  448.91                80
 03/30/2021   06:27:13   (  -0.14,-128.29) (   0.72,-124.21)  463.95                80
 03/30/2021   18:48:28   (   0.14,-128.35) (   0.38,-129.36)  115.27                80