Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 12 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)
 12/11/2021   06:27:58   (   0.16,-127.88) (   0.94,-124.29)  408.65                80
 12/11/2021   18:51:53   (  -0.14,-127.89) (   0.18,-129.44)  176.46                80
 12/13/2021   18:37:01   (  -0.14,-127.82) (  -0.42,-126.48)  152.59                80
 12/14/2021   07:01:05   (   0.13,-127.78) (  -0.69,-131.67)  441.85                80
 12/15/2021   18:24:49   (  -0.15,-127.75) (  -1.02,-123.51)  481.20                80
 12/16/2021   06:48:53   (   0.13,-127.71) (  -0.09,-128.70)  113.40                80
 12/18/2021   06:34:01   (   0.13,-127.63) (   0.53,-125.74)  214.43                80
 12/18/2021   18:57:55   (  -0.12,-127.63) (   0.60,-130.89)  371.37                80
 12/20/2021   18:45:44   (  -0.11,-127.55) (  -0.01,-127.93)   44.24                80
 12/22/2021   18:30:52   (  -0.11,-127.46) (  -0.63,-124.97)  282.58                80
 12/23/2021   06:54:55   (   0.10,-127.41) (  -0.47,-130.16)  312.23                80