Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 9 29.  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)
 09/29/2021   06:36:45   (   0.36,-127.60) (   0.77,-125.80)  205.72                80
 09/29/2021   18:55:20   (  -0.37,-127.55) (   0.37,-130.95)  386.75                80
 10/01/2021   18:43:09   (  -0.36,-127.46) (  -0.23,-127.98)   60.13                80
 10/03/2021   18:33:38   (  -0.36,-127.37) (  -0.83,-125.02)  266.19                80
 10/04/2021   06:52:23   (   0.37,-127.38) (  -0.24,-130.22)  323.56                80
 10/06/2021   06:42:52   (   0.37,-127.29) (   0.37,-127.26)    2.28                80
 10/08/2021   06:30:41   (   0.37,-127.19) (   0.98,-124.31)  327.56                80
 10/08/2021   18:49:17   (  -0.37,-127.13) (   0.10,-129.47)  265.30                80
 10/10/2021   18:39:45   (  -0.37,-127.02) (  -0.46,-126.49)   59.08                80
 10/12/2021   18:27:34   (  -0.36,-126.90) (  -1.07,-123.54)  382.69                80