Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 3 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)
 03/19/2021   06:48:20   (  -0.15,-128.37) (  -0.19,-128.66)   32.56                80
 03/21/2021   06:33:28   (  -0.15,-128.37) (   0.41,-125.70)  302.64                80
 03/21/2021   18:54:43   (   0.15,-128.44) (   0.65,-130.87)  275.46                80
 03/23/2021   18:45:12   (   0.14,-128.43) (   0.04,-127.91)   58.95                80
 03/25/2021   18:33:01   (   0.14,-128.41) (  -0.62,-124.96)  393.00                80
 03/26/2021   06:54:24   (  -0.14,-128.33) (  -0.49,-130.15)  206.38                80
 03/28/2021   06:39:32   (  -0.14,-128.31) (   0.12,-127.20)  127.26                80
 03/28/2021   19:00:47   (   0.14,-128.38) (   1.00,-132.35)  452.02                80
 03/30/2021   06:27:20   (  -0.14,-128.29) (   0.73,-124.24)  460.39                80
 03/30/2021   18:48:36   (   0.14,-128.35) (   0.33,-129.40)  118.98                80
 04/01/2021   18:39:04   (   0.13,-128.32) (  -0.29,-126.45)  213.30                80