Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 15.  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)
 07/15/2021   18:33:08   (  -0.10,-127.76) (  -0.69,-124.97)  316.08                80
 07/16/2021   06:54:32   (   0.09,-127.77) (  -0.44,-130.16)  272.10                80
 07/18/2021   06:39:41   (   0.09,-127.69) (   0.21,-127.21)   55.70                80
 07/20/2021   06:27:29   (   0.09,-127.61) (   0.81,-124.24)  382.73                80
 07/20/2021   18:48:44   (  -0.08,-127.54) (   0.32,-129.39)  209.80                80
 07/22/2021   18:39:12   (  -0.08,-127.45) (  -0.28,-126.42)  116.53                80
 07/23/2021   07:00:35   (   0.06,-127.47) (  -0.84,-131.61)  470.95                80
 07/24/2021   18:27:01   (  -0.09,-127.35) (  -0.94,-123.47)  442.51                80
 07/25/2021   06:48:25   (   0.07,-127.37) (  -0.18,-128.65)  145.09                80
 07/27/2021   06:33:33   (   0.08,-127.28) (   0.42,-125.69)  180.80                80
 07/27/2021   18:57:27   (  -0.06,-127.20) (   0.70,-130.84)  413.02                80