Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 16.  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   19:07:59   (  -0.03,-137.21) (  -0.68,-134.26)  336.35                80
 12/17/2021   07:32:02   (   0.03,-137.20) (  -0.43,-139.45)  254.99                80
 12/19/2021   07:17:10   (   0.03,-137.19) (   0.19,-136.49)   79.96                80
 12/21/2021   07:04:59   (   0.03,-137.17) (   0.80,-133.53)  414.27                80
 12/21/2021   19:26:13   (  -0.02,-137.17) (   0.32,-138.68)  171.84                80
 12/23/2021   19:16:41   (  -0.02,-137.15) (  -0.30,-135.72)  161.91                80
 12/24/2021   07:38:05   (   0.02,-137.13) (  -0.80,-140.91)  429.75                80
 12/25/2021   19:04:29   (  -0.02,-137.12) (  -0.93,-132.76)  495.19                80
 12/26/2021   07:25:53   (   0.02,-137.10) (  -0.17,-137.95)   96.58                80
 12/28/2021   07:11:01   (   0.02,-137.07) (   0.46,-134.99)  235.99                80
 12/28/2021   19:32:16   (  -0.02,-137.06) (   0.66,-140.14)  350.90                80