Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 11.  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)
 10/11/2021   07:01:13   (   0.37,-128.04) (  -0.44,-131.73)  419.79                80
 10/13/2021   06:49:03   (   0.36,-128.10) (   0.24,-128.79)   77.85                80
 10/15/2021   06:34:12   (   0.35,-128.15) (   0.87,-125.83)  264.02                80
 10/15/2021   18:55:26   (  -0.35,-128.15) (   0.27,-130.98)  322.16                80
 10/17/2021   18:45:55   (  -0.35,-128.20) (  -0.36,-128.02)   19.96                80
 10/19/2021   18:33:46   (  -0.35,-128.25) (  -1.06,-125.08)  361.49                80
 10/20/2021   06:55:09   (   0.35,-128.28) (  -0.06,-130.27)  226.13                80
 10/22/2021   06:40:18   (   0.35,-128.32) (   0.58,-127.31)  115.10                80
 10/22/2021   19:04:13   (  -0.35,-128.32) (   0.56,-132.46)  471.49                80
 10/24/2021   06:28:07   (   0.35,-128.36) (   1.22,-124.36)  455.74                80
 10/24/2021   18:49:22   (  -0.34,-128.36) (  -0.09,-129.51)  130.97                80