Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 6 12.  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)
 06/12/2021   07:07:08   (  -0.03,-137.20) (   0.77,-133.55)  416.16                80
 06/12/2021   19:25:43   (   0.03,-137.20) (   0.37,-138.69)  170.46                80
 06/14/2021   19:16:13   (   0.03,-137.19) (  -0.30,-135.75)  165.01                80
 06/15/2021   07:34:57   (  -0.02,-137.19) (  -0.83,-140.93)  425.46                80
 06/16/2021   19:04:02   (   0.02,-137.18) (  -0.91,-132.78)  499.96                80
 06/17/2021   07:22:47   (  -0.02,-137.18) (  -0.16,-137.98)   90.67                80
 06/19/2021   07:13:16   (  -0.02,-137.16) (   0.45,-135.02)  243.78                80
 06/19/2021   19:31:51   (   0.02,-137.16) (   0.69,-140.17)  343.35                80
 06/21/2021   19:19:41   (   0.02,-137.13) (   0.01,-137.22)   10.28                80
 06/23/2021   19:10:10   (   0.02,-137.09) (  -0.60,-134.26)  322.50                80
 06/24/2021   07:28:53   (  -0.01,-137.08) (  -0.52,-139.45)  268.71                80