Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 1 19.  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)
 01/19/2021   07:04:47   (  -0.00,-137.20) (   0.78,-133.50)  421.19                80
 01/19/2021   19:26:03   (   0.00,-137.22) (   0.30,-138.66)  163.99                80
 01/21/2021   19:16:31   (   0.00,-137.21) (  -0.29,-135.70)  171.65                80
 01/22/2021   07:37:56   (  -0.01,-137.20) (  -0.76,-140.90)  420.12                80
 01/24/2021   07:25:44   (  -0.01,-137.19) (  -0.18,-137.94)   85.46                80
 01/26/2021   07:10:53   (  -0.01,-137.16) (   0.48,-134.99)  248.37                80
 01/26/2021   19:32:08   (   0.01,-137.17) (   0.65,-140.14)  337.68                80
 01/28/2021   19:19:57   (   0.01,-137.14) (  -0.00,-137.19)    5.51                80
 01/30/2021   19:10:25   (   0.01,-137.10) (  -0.60,-134.22)  327.44                80
 01/31/2021   07:31:49   (  -0.01,-137.09) (  -0.51,-139.41)  264.92                80