Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 10 4.  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)
 10/04/2021   06:32:47   ( -70.69,-102.92) 10/04/2021   06:33:56  ( -70.55,-101.32)   61.31                69
 10/04/2021   07:23:20   (  70.00,  65.47) 10/04/2021   07:23:31  (  70.01,  65.55)    3.32                11
 10/04/2021   08:14:01   ( -69.86,-127.00) 10/04/2021   08:13:02  ( -69.84,-127.06)    3.21                59
 10/06/2021   22:49:29   ( -70.05,  13.86) 10/06/2021   22:50:35  ( -70.05,  13.84)    0.80                66
 10/06/2021   23:40:13   (  69.94,-178.66) 10/06/2021   23:40:02  (  69.96,-178.66)    1.80                11
 10/07/2021   00:30:49   ( -69.53, -10.74) 10/07/2021   00:29:37  ( -69.57, -11.56)   32.04                72
 10/09/2021   15:06:22   ( -70.04, 129.65) 10/09/2021   15:07:04  ( -70.05, 129.71)    2.34                42
 10/09/2021   15:57:05   (  69.88, -62.80) 10/09/2021   15:56:32  (  69.89, -62.87)    2.77                33
 10/12/2021   06:32:46   (  70.77,  76.96) 10/12/2021   06:33:54  (  70.69,  78.90)   71.77                68
 10/12/2021   07:23:15   ( -69.99,-114.49) 10/12/2021   07:23:35  ( -69.98,-114.51)    1.08                20
 10/12/2021   08:13:59   (  69.88,  52.98) 10/12/2021   08:13:02  (  69.87,  52.99)    0.82                57
 10/14/2021   22:49:27   (  70.09,-166.19) 10/14/2021   22:50:35  (  70.07,-166.14)    2.71                68
 10/14/2021   23:40:08   ( -69.93,   1.37) 10/14/2021   23:40:05  ( -69.96,   1.34)    3.34                 3
 10/15/2021   00:30:48   (  69.62, 169.14) 10/15/2021   00:29:36  (  69.63, 168.53)   23.73                72
 10/17/2021   15:06:20   (  70.04, -50.33) 10/17/2021   15:07:05  (  70.04, -50.30)    1.24                45
 10/17/2021   15:57:02   ( -69.93, 117.14) 10/17/2021   15:56:35  ( -69.93, 117.18)    1.68                27