Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 15.  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)
 12/16/2021   19:10:39   (  -0.03,-137.20) (  -0.68,-134.26)  335.76                80
 12/17/2021   07:32:02   (   0.02,-137.19) (  -0.43,-139.45)  255.62                80
 12/19/2021   07:17:10   (   0.02,-137.17) (   0.18,-136.49)   78.63                80
 12/21/2021   07:04:59   (   0.02,-137.15) (   0.80,-133.53)  412.23                80
 12/21/2021   19:26:13   (  -0.02,-137.15) (   0.32,-138.68)  174.25                80
 12/23/2021   19:16:41   (  -0.02,-137.12) (  -0.30,-135.72)  158.77                80
 12/24/2021   07:38:05   (   0.02,-137.10) (  -0.81,-140.91)  432.93                80
 12/25/2021   19:04:29   (  -0.01,-137.08) (  -0.92,-132.76)  491.31                80
 12/26/2021   07:25:53   (   0.01,-137.07) (  -0.18,-137.95)  100.51                80
 12/28/2021   07:11:01   (   0.01,-137.02) (   0.45,-134.99)  231.34                80
 12/28/2021   19:32:16   (  -0.01,-137.01) (   0.68,-140.14)  355.91                80