Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 09/12/2021   07:29:19   (   0.04,-137.20) (  -0.44,-139.44)  255.33                80
 09/14/2021   07:19:48   (   0.04,-137.18) (   0.19,-136.49)   79.40                80
 09/16/2021   07:07:37   (   0.03,-137.16) (   0.81,-133.53)  413.45                80
 09/16/2021   19:26:12   (  -0.03,-137.16) (   0.26,-138.69)  173.58                80
 09/18/2021   19:16:41   (  -0.03,-137.13) (  -0.31,-135.72)  160.35                80
 09/19/2021   07:38:04   (   0.03,-137.13) (  -0.81,-140.91)  430.45                80
 09/20/2021   19:04:30   (  -0.03,-137.11) (  -0.95,-132.76)  494.10                80
 09/21/2021   07:25:53   (   0.03,-137.10) (  -0.17,-137.95)   96.75                80
 09/23/2021   07:11:02   (   0.03,-137.08) (   0.47,-135.00)  236.59                80
 09/23/2021   19:32:18   (  -0.03,-137.07) (   0.61,-140.16)  350.77                80
 09/25/2021   19:20:06   (  -0.03,-137.03) (   0.02,-137.19)   18.27                80