Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 5 5.  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)
 05/05/2021   18:26:35   (   0.02,-127.85) (  -0.88,-123.50)  494.34                80
 05/06/2021   06:47:59   (  -0.01,-127.83) (  -0.21,-128.69)   98.73                80
 05/08/2021   06:33:07   (  -0.02,-127.90) (   0.46,-125.74)  245.76                80
 05/08/2021   18:54:22   (   0.01,-127.96) (   0.65,-130.90)  334.80                80
 05/10/2021   18:44:50   (   0.01,-128.03) (  -0.03,-127.95)    9.85                80
 05/12/2021   18:32:37   (   0.02,-128.10) (  -0.65,-124.99)  353.09                80
 05/13/2021   06:54:01   (  -0.01,-128.08) (  -0.44,-130.19)  238.83                80
 05/15/2021   06:39:08   (  -0.01,-128.14) (   0.18,-127.23)  103.64                80
 05/15/2021   19:00:23   (   0.00,-128.18) (   0.93,-132.38)  479.04                80
 05/17/2021   06:26:55   (  -0.01,-128.19) (   0.81,-124.27)  445.48                80
 05/17/2021   18:48:11   (   0.00,-128.23) (   0.24,-129.44)  137.12                80