Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 25.  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)
 01/25/2021   06:30:21   (  -0.02,-127.77) (   0.72,-124.22)  403.21                80
 01/25/2021   18:48:58   (  -0.02,-127.79) (   0.29,-129.40)  181.92                80
 01/27/2021   18:39:26   (  -0.02,-127.72) (  -0.30,-126.43)  146.63                80
 01/28/2021   06:58:10   (   0.06,-127.66) (  -0.81,-131.62)  451.05                80
 01/29/2021   18:27:14   (  -0.01,-127.65) (  -0.90,-123.47)  474.82                80
 01/30/2021   06:45:58   (   0.05,-127.59) (  -0.21,-128.66)  122.91                80
 02/01/2021   06:36:27   (   0.04,-127.51) (   0.45,-125.71)  204.89                80
 02/01/2021   18:55:03   (  -0.08,-127.53) (   0.62,-130.88)  380.12                80
 02/03/2021   18:42:51   (  -0.07,-127.45) (   0.02,-127.91)   52.94                80
 02/05/2021   18:33:19   (  -0.07,-127.36) (  -0.59,-124.95)  273.42                80
 02/06/2021   06:52:03   (   0.11,-127.29) (  -0.52,-130.14)  325.27                80