Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 12 23.  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)
 12/23/2019   07:13:41   (  -0.02,-137.20) (   0.48,-134.99)  252.21                80
 12/23/2019   19:32:15   (   0.01,-137.21) (   0.64,-140.14)  334.05                80
 12/25/2019   19:20:04   (   0.02,-137.19) (   0.02,-137.18)    0.72                80
 12/27/2019   19:10:32   (   0.03,-137.17) (  -0.60,-134.22)  334.69                80
 12/28/2019   07:29:15   (  -0.02,-137.16) (  -0.51,-139.41)  256.86                80
 12/30/2019   07:19:43   (  -0.03,-137.13) (   0.11,-136.45)   76.95                80
 01/01/2020   07:07:32   (  -0.04,-137.10) (   0.74,-133.50)  410.45                80
 01/01/2020   19:26:06   (   0.04,-137.10) (   0.38,-138.65)  176.35                80
 01/03/2020   19:16:34   (   0.04,-137.07) (  -0.25,-135.69)  156.51                80
 01/04/2020   07:35:18   (  -0.03,-137.05) (  -0.85,-140.88)  435.39                80
 01/05/2020   19:04:22   (   0.04,-137.03) (  -0.88,-132.73)  488.67                80