Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 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)
 12/17/2020   18:45:43   (   0.18,-128.22) (   0.10,-127.92)   34.67                80
 12/19/2020   18:33:31   (   0.19,-128.23) (  -0.51,-124.95)  373.00                80
 12/20/2020   06:52:15   (  -0.17,-128.25) (  -0.55,-130.16)  215.95                80
 12/22/2020   06:42:43   (  -0.18,-128.27) (   0.06,-127.19)  122.32                80
 12/22/2020   19:01:19   (   0.15,-128.26) (   1.00,-132.36)  465.23                80
 12/24/2020   06:30:32   (  -0.18,-128.28) (   0.68,-124.23)  460.31                80
 12/24/2020   18:49:07   (   0.16,-128.27) (   0.38,-129.40)  127.48                80
 12/26/2020   18:39:35   (   0.16,-128.28) (  -0.24,-126.44)  209.66                80
 12/27/2020   06:58:19   (  -0.13,-128.29) (  -0.87,-131.63)  380.35                80
 12/29/2020   06:46:07   (  -0.14,-128.29) (  -0.25,-128.67)   44.00                80