Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 28.  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)
 12/28/2021   07:11:01   (   0.01,-137.21) (   0.48,-134.99)  252.30                80
 12/28/2021   19:34:56   (  -0.01,-137.22) (   0.64,-140.14)  333.19                80
 12/30/2021   19:22:44   (  -0.02,-137.22) (  -0.02,-137.19)    2.88                80
 01/01/2022   19:10:32   (  -0.02,-137.20) (  -0.68,-134.24)  337.96                80
 01/02/2022   07:31:54   (   0.02,-137.19) (  -0.47,-139.42)  253.32                80
 01/04/2022   07:17:02   (   0.02,-137.17) (   0.20,-136.46)   81.25                80
 01/06/2022   07:04:50   (   0.02,-137.15) (   0.81,-133.50)  415.67                80
 01/06/2022   19:26:04   (  -0.02,-137.15) (   0.30,-138.65)  170.65                80
 01/08/2022   19:16:31   (  -0.02,-137.13) (  -0.32,-135.69)  163.75                80
 01/09/2022   07:37:55   (   0.02,-137.12) (  -0.76,-140.88)  427.46                80
 01/10/2022   19:04:18   (  -0.01,-137.10) (  -0.95,-132.73)  497.83                80