Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 4 24.  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)
 04/26/2021   18:32:46   (   0.06,-127.65) (  -0.54,-124.97)  305.33                80
 04/27/2021   06:54:09   (  -0.05,-127.56) (  -0.62,-130.15)  295.58                80
 04/29/2021   06:39:17   (  -0.05,-127.47) (   0.04,-127.20)   31.37                80
 05/01/2021   06:27:04   (  -0.05,-127.38) (   0.64,-124.24)  357.27                80
 05/01/2021   18:48:19   (   0.04,-127.42) (   0.47,-129.39)  224.47                80
 05/03/2021   18:38:46   (   0.04,-127.33) (  -0.14,-126.43)  101.36                80
 05/04/2021   07:00:10   (  -0.03,-127.24) (  -0.95,-131.63)  498.46                80
 05/05/2021   18:26:33   (   0.04,-127.23) (  -0.75,-123.47)  427.34                80
 05/06/2021   06:47:57   (  -0.03,-127.14) (  -0.34,-128.67)  172.62                80
 05/08/2021   06:33:04   (  -0.03,-127.05) (   0.27,-125.71)  153.23                80
 05/08/2021   18:54:19   (   0.03,-127.08) (   0.84,-130.86)  430.05                80