Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 9 9.  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)
 09/09/2021   06:58:24   (   0.34,-128.22) (  -0.43,-131.72)  398.68                80
 09/11/2021   06:46:13   (   0.33,-128.20) (   0.19,-128.76)   64.94                80
 09/13/2021   06:36:42   (   0.32,-128.16) (   0.81,-125.80)  268.07                80
 09/13/2021   18:55:18   (  -0.35,-128.10) (   0.27,-130.96)  325.44                80
 09/15/2021   18:45:47   (  -0.34,-128.06) (  -0.36,-128.01)    6.78                80
 09/17/2021   18:33:36   (  -0.33,-128.02) (  -0.99,-125.05)  338.66                80
 09/18/2021   06:52:20   (   0.35,-128.07) (  -0.13,-130.24)  247.38                80
 09/20/2021   06:42:49   (   0.35,-128.02) (   0.51,-127.28)   84.56                80
 09/22/2021   06:30:38   (   0.35,-127.98) (   1.15,-124.33)  416.47                80
 09/22/2021   18:49:13   (  -0.36,-127.92) (  -0.01,-129.47)  177.43                80