Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 3 18.  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)
 03/19/2021   06:48:19   (  -0.15,-128.37) (  -0.24,-128.65)   32.63                80
 03/21/2021   06:33:28   (  -0.15,-128.37) (   0.42,-125.71)  302.61                80
 03/21/2021   18:54:44   (   0.15,-128.44) (   0.64,-130.87)  275.51                80
 03/23/2021   18:45:12   (   0.14,-128.43) (   0.03,-127.91)   58.90                80
 03/25/2021   18:33:00   (   0.14,-128.41) (  -0.57,-124.95)  392.97                80
 03/26/2021   06:54:23   (  -0.14,-128.33) (  -0.54,-130.14)  206.37                80
 03/28/2021   06:39:32   (  -0.14,-128.31) (   0.07,-127.19)  127.31                80
 03/28/2021   19:00:47   (   0.14,-128.38) (   0.99,-132.35)  452.00                80
 03/30/2021   06:27:21   (  -0.14,-128.29) (   0.75,-124.24)  460.44                80
 03/30/2021   18:48:35   (   0.14,-128.35) (   0.37,-129.39)  118.92                80