Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 11.  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)
 09/11/2021   19:10:34   (  -0.04,-137.20) (  -0.66,-134.25)  335.28                80
 09/12/2021   07:29:18   (   0.04,-137.20) (  -0.46,-139.44)  255.39                80
 09/14/2021   07:19:47   (   0.04,-137.18) (   0.17,-136.48)   79.38                80
 09/16/2021   07:07:36   (   0.03,-137.16) (   0.80,-133.52)  413.41                80
 09/16/2021   19:26:12   (  -0.03,-137.16) (   0.28,-138.69)  173.55                80
 09/18/2021   19:16:41   (  -0.03,-137.13) (  -0.35,-135.73)  160.35                80
 09/19/2021   07:38:05   (   0.03,-137.13) (  -0.76,-140.92)  430.49                80
 09/20/2021   19:04:29   (  -0.03,-137.11) (  -0.93,-132.76)  494.09                80
 09/21/2021   07:25:54   (   0.03,-137.10) (  -0.12,-137.96)   96.84                80
 09/23/2021   07:11:02   (   0.03,-137.08) (   0.46,-134.99)  236.55                80
 09/23/2021   19:32:18   (  -0.03,-137.07) (   0.62,-140.15)  350.77                80