Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 10 10.  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)
 10/12/2021   06:32:47   (  70.81,  76.89) 10/12/2021   06:33:54  (  70.71,  78.91)   75.03                67
 10/12/2021   07:23:15   ( -69.98,-114.48) 10/12/2021   07:23:35  ( -69.99,-114.50)    1.10                20
 10/12/2021   08:13:59   (  69.87,  53.00) 10/12/2021   08:13:02  (  69.89,  53.00)    2.43                57
 10/14/2021   22:49:27   (  70.07,-166.17) 10/14/2021   22:50:35  (  70.08,-166.13)    1.61                68
 10/14/2021   23:40:09   ( -69.98,   1.30) 10/14/2021   23:40:05  ( -69.97,   1.35)    2.42                 4
 10/15/2021   00:30:48   (  69.60, 169.16) 10/15/2021   00:29:36  (  69.64, 168.54)   24.25                72
 10/17/2021   15:06:19   (  70.03, -50.32) 10/17/2021   15:07:04  (  70.05, -50.29)    2.62                45
 10/17/2021   15:57:01   ( -69.93, 117.15) 10/17/2021   15:56:34  ( -69.94, 117.19)    1.89                27
 10/20/2021   06:32:46   ( -71.03,-103.46) 10/20/2021   06:33:52  ( -70.94,-100.74)   99.06                66
 10/20/2021   07:23:12   (  69.98,  65.52) 10/20/2021   07:23:34  (  70.01,  65.54)    3.10                22
 10/20/2021   08:13:54   ( -69.88,-127.01) 10/20/2021   08:13:04  ( -69.90,-126.98)    2.68                50
 10/22/2021   22:49:24   ( -70.20,  13.66) 10/22/2021   22:50:36  ( -70.13,  13.94)   13.17                72
 10/22/2021   23:40:05   (  69.94,-178.64) 10/22/2021   23:40:04  (  69.97,-178.65)    2.61                 1
 10/23/2021   00:30:47   ( -69.84, -11.17) 10/23/2021   00:29:34  ( -69.86, -11.16)    2.72                73