Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 8.  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)
 12/08/2021   07:38:09   (   0.02,-137.20) (  -0.79,-140.92)  422.75                80
 12/10/2021   07:25:58   (   0.02,-137.21) (  -0.14,-137.97)   86.00                80
 12/12/2021   07:11:06   (   0.02,-137.21) (   0.47,-135.00)  250.65                80
 12/12/2021   19:35:01   (  -0.02,-137.21) (   0.60,-140.17)  335.89                80
 12/14/2021   19:22:50   (  -0.02,-137.21) (  -0.01,-137.20)    1.35                80
 12/16/2021   19:10:38   (  -0.02,-137.20) (  -0.62,-134.24)  335.73                80
 12/17/2021   07:32:02   (   0.02,-137.20) (  -0.43,-139.45)  254.55                80
 12/19/2021   07:17:10   (   0.01,-137.18) (   0.19,-136.49)   80.16                80
 12/21/2021   07:04:58   (   0.00,-137.16) (   0.81,-133.53)  414.11                80
 12/21/2021   19:26:13   (  -0.00,-137.15) (   0.32,-138.68)  173.37                80