Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 11 19.  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)
 11/20/2021   18:30:58   (  -0.25,-128.39) (  -0.94,-125.03)  381.12                80
 11/21/2021   06:55:02   (   0.24,-128.36) (  -0.19,-130.22)  212.04                80
 11/23/2021   06:40:11   (   0.24,-128.33) (   0.43,-127.26)  120.51                80
 11/23/2021   19:04:07   (  -0.22,-128.34) (   0.64,-132.42)  464.46                80
 11/25/2021   06:28:00   (   0.23,-128.29) (   1.06,-124.31)  452.52                80
 11/25/2021   18:51:56   (  -0.22,-128.30) (   0.01,-129.47)  132.51                80
 11/27/2021   18:37:05   (  -0.22,-128.26) (  -0.62,-126.51)  199.16                80
 11/28/2021   07:01:08   (   0.20,-128.23) (  -0.57,-131.69)  394.07                80
 11/30/2021   06:48:57   (   0.20,-128.18) (   0.07,-128.73)   63.00                80
 12/02/2021   06:34:06   (   0.20,-128.13) (   0.70,-125.78)  267.40                80
 12/02/2021   18:58:00   (  -0.19,-128.13) (   0.43,-130.93)  318.39                80