Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2017 11 30.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 11/30/2017   10:14:55   (  71.05,  21.20) 11/30/2017   10:16:01  (  71.00,  23.74)   92.07                66
 11/30/2017   11:05:16   ( -70.13,-169.98) 11/30/2017   11:05:45  ( -70.12,-169.94)    1.47                29
 11/30/2017   11:55:56   (  70.04,  -2.51) 11/30/2017   11:55:12  (  70.02,  -2.45)    3.43                44
 12/03/2017   06:38:47   ( -70.19,-103.44) 12/03/2017   06:39:58  ( -70.16,-103.44)    2.93                71
 12/03/2017   07:29:26   (  70.05,  64.10) 12/03/2017   07:29:25  (  70.05,  64.05)    1.88                 1
 12/03/2017   08:20:03   ( -69.96,-128.43) 12/03/2017   08:18:55  ( -69.94,-128.47)    2.67                68
 12/06/2017   03:02:57   (  70.13, 130.61) 12/06/2017   03:03:37  (  70.14, 130.61)    0.80                40
 12/06/2017   03:53:34   ( -70.03, -61.90) 12/06/2017   03:53:07  ( -70.03, -61.91)    0.25                27
 12/08/2017   22:36:33   (  70.54,-163.40) 12/08/2017   22:37:44  (  70.44,-162.51)   35.24                71
 12/08/2017   23:27:04   ( -70.12,   4.60) 12/08/2017   23:27:18  ( -70.11,   4.65)    2.24                14
 12/09/2017   00:17:43   (  70.00, 172.11) 12/09/2017   00:16:45  (  70.00, 172.14)    1.31                58
 12/11/2017   19:00:34   ( -70.17,  71.16) 12/11/2017   19:01:30  ( -70.19,  71.21)    3.07                56
 12/11/2017   19:51:13   (  70.06,-121.34) 12/11/2017   19:50:57  (  70.08,-121.31)    2.35                16
 12/11/2017   20:41:44   ( -69.63,  46.64) 12/11/2017   20:40:32  ( -69.70,  45.79)   33.51                72