Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 3 20.  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)
 03/21/2021   06:33:28   (  -0.15,-128.37) (   0.42,-125.70)  302.68                80
 03/21/2021   18:54:44   (   0.15,-128.44) (   0.64,-130.87)  275.38                80
 03/23/2021   18:45:12   (   0.14,-128.43) (   0.04,-127.91)   59.05                80
 03/25/2021   18:33:00   (   0.14,-128.42) (  -0.57,-124.95)  393.13                80
 03/26/2021   06:54:23   (  -0.14,-128.33) (  -0.55,-130.14)  206.27                80
 03/28/2021   06:39:32   (  -0.14,-128.31) (   0.13,-127.20)  127.41                80
 03/28/2021   19:00:47   (   0.14,-128.38) (   0.99,-132.35)  451.84                80
 03/30/2021   06:27:21   (  -0.14,-128.29) (   0.74,-124.24)  460.56                80
 03/30/2021   18:48:35   (   0.14,-128.35) (   0.38,-129.39)  118.75                80
 04/01/2021   18:39:03   (   0.13,-128.32) (  -0.24,-126.44)  213.55                80
 04/02/2021   07:00:27   (  -0.13,-128.24) (  -0.87,-131.63)  385.53                80