Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 12 25.  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)
 12/26/2020   18:39:35   (   0.16,-128.26) (  -0.21,-126.43)  207.86                80
 12/27/2020   06:58:20   (  -0.13,-128.26) (  -0.84,-131.63)  383.19                80
 12/29/2020   06:46:08   (  -0.14,-128.26) (  -0.22,-128.68)   47.43                80
 12/31/2020   06:36:36   (  -0.14,-128.24) (   0.41,-125.72)  287.67                80
 12/31/2020   18:55:12   (   0.12,-128.24) (   0.65,-130.88)  299.54                80
 01/02/2021   18:45:39   (   0.12,-128.22) (   0.08,-127.91)   35.04                80
 01/04/2021   18:33:27   (   0.14,-128.20) (  -0.55,-124.95)  369.18                80
 01/05/2021   06:52:10   (  -0.11,-128.19) (  -0.55,-130.14)  222.96                80
 01/07/2021   06:42:39   (  -0.11,-128.16) (   0.09,-127.19)  110.63                80
 01/07/2021   19:01:14   (   0.08,-128.16) (   0.97,-132.35)  476.53                80