Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 9 15.  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)
 09/15/2021   18:45:47   (  -0.34,-128.01) (  -0.36,-128.01)    2.26                80
 09/17/2021   18:33:35   (  -0.33,-127.95) (  -0.93,-125.04)  331.17                80
 09/18/2021   06:52:20   (   0.35,-127.99) (  -0.13,-130.24)  255.31                80
 09/20/2021   06:42:49   (   0.35,-127.94) (   0.50,-127.28)   74.94                80
 09/22/2021   06:30:37   (   0.35,-127.88) (   1.08,-124.31)  405.14                80
 09/22/2021   18:49:13   (  -0.36,-127.81) (  -0.00,-129.47)  189.18                80
 09/24/2021   18:39:42   (  -0.36,-127.75) (  -0.64,-126.52)  140.58                80
 09/25/2021   06:58:25   (   0.37,-127.79) (  -0.47,-131.71)  445.67                80
 09/26/2021   18:27:30   (  -0.35,-127.68) (  -1.22,-123.55)  469.78                80
 09/27/2021   06:46:14   (   0.37,-127.72) (   0.17,-128.75)  116.63                80