Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 5 21.  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)
 05/21/2020   06:33:04   (  -0.19,-128.25) (   0.36,-125.71)  288.78                80
 05/21/2020   18:54:20   (   0.18,-128.28) (   0.72,-130.87)  294.47                80
 05/23/2020   18:44:49   (   0.17,-128.26) (   0.10,-127.91)   39.39                80
 05/25/2020   18:32:38   (   0.17,-128.23) (  -0.53,-124.95)  372.45                80
 05/26/2020   06:51:22   (  -0.16,-128.19) (  -0.59,-130.14)  222.40                80
 05/28/2020   06:39:11   (  -0.15,-128.15) (   0.04,-127.18)  109.79                80
 05/28/2020   19:00:27   (   0.14,-128.17) (   1.04,-132.34)  474.83                80
 05/30/2020   06:27:00   (  -0.15,-128.11) (   0.67,-124.22)  441.61                80
 05/30/2020   18:48:16   (   0.14,-128.13) (   0.42,-129.38)  142.98                80
 06/01/2020   18:38:45   (   0.14,-128.08) (  -0.21,-126.42)  188.59                80
 06/02/2020   06:57:29   (  -0.13,-128.05) (  -0.90,-131.61)  405.78                80