Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 1 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 01/23/2020   06:27:44   (   0.01,-128.42) (   0.90,-124.26)  473.03                80
 01/23/2020   18:51:39   (  -0.00,-128.40) (   0.22,-129.41)  115.49                80
 01/25/2020   18:36:47   (  -0.00,-128.38) (  -0.40,-126.46)  219.03                80
 01/26/2020   06:58:11   (  -0.01,-128.39) (  -0.70,-131.65)  369.88                80
 01/28/2020   06:45:59   (  -0.01,-128.38) (  -0.08,-128.69)   35.37                80
 01/30/2020   06:36:27   (  -0.02,-128.36) (   0.55,-125.73)  298.81                80
 01/30/2020   18:57:42   (   0.02,-128.34) (   0.57,-130.88)  289.69                80
 02/01/2020   18:42:50   (   0.02,-128.31) (  -0.05,-127.92)   43.75                80
 02/03/2020   18:30:38   (   0.01,-128.28) (  -0.68,-124.97)  376.42                80
 02/04/2020   06:52:02   (  -0.01,-128.28) (  -0.42,-130.16)  213.37                80