Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 4 13.  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)
 04/13/2019   06:57:31   (   0.06,-127.74) (  -0.79,-131.65)  444.91                80
 04/14/2019   18:26:35   (  -0.06,-127.66) (  -0.96,-123.50)  473.30                80
 04/15/2019   06:45:19   (   0.06,-127.66) (  -0.15,-128.69)  117.24                80
 04/17/2019   06:35:46   (   0.06,-127.58) (   0.42,-125.73)  210.37                80
 04/17/2019   18:54:22   (  -0.06,-127.54) (   0.63,-130.89)  380.49                80
 04/19/2019   18:42:09   (  -0.06,-127.46) (   0.05,-127.93)   53.22                80
 04/21/2019   18:32:37   (  -0.07,-127.38) (  -0.59,-124.97)  273.58                80
 04/22/2019   06:51:21   (   0.07,-127.37) (  -0.51,-130.16)  317.17                80
 04/24/2019   06:41:48   (   0.08,-127.28) (   0.08,-127.20)    9.16                80
 04/26/2019   06:29:36   (   0.08,-127.19) (   0.73,-124.25)  334.87                80
 04/26/2019   18:48:10   (  -0.09,-127.14) (   0.39,-129.40)  256.47                80