Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 23.  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)
 10/24/2021   06:28:07   (   0.34,-128.33) (   1.19,-124.35)  451.74                80
 10/24/2021   18:49:23   (  -0.34,-128.34) (  -0.12,-129.52)  133.01                80
 10/26/2021   18:39:51   (  -0.33,-128.37) (  -0.71,-126.55)  206.12                80
 10/27/2021   07:01:14   (   0.33,-128.37) (  -0.41,-131.74)  384.09                80
 10/29/2021   06:49:04   (   0.32,-128.39) (   0.24,-128.79)   45.64                80
 10/31/2021   06:34:13   (   0.32,-128.40) (   0.89,-125.83)  292.41                80
 10/31/2021   18:58:07   (  -0.31,-128.41) (   0.23,-130.98)  292.89                80
 11/02/2021   18:43:54   (  -0.32,-128.42) (  -0.37,-128.02)   44.80                41
 11/04/2021   18:31:04   (  -0.32,-128.42) (  -1.03,-125.07)  381.63                80
 11/05/2021   06:55:08   (   0.31,-128.42) (  -0.08,-130.26)  208.78                80