Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 9 13.  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)
 09/15/2021   15:06:31   (  70.02, -50.34) 09/15/2021   15:06:56  (  70.01, -50.31)    1.15                25
 09/15/2021   15:57:12   ( -69.88, 117.18) 09/15/2021   15:56:26  ( -69.90, 117.16)    2.28                46
 09/18/2021   06:32:45   ( -70.32,-102.34) 09/18/2021   06:33:56  ( -70.25,-101.74)   24.02                71
 09/18/2021   07:23:25   (  70.00,  65.47) 09/18/2021   07:23:26  (  69.98,  65.52)    2.52                 1
 09/18/2021   08:14:06   ( -69.85,-127.00) 09/18/2021   08:12:56  ( -69.87,-127.00)    1.98                70
 09/20/2021   22:49:34   ( -70.03,  13.87) 09/20/2021   22:50:29  ( -70.05,  13.86)    2.19                55
 09/20/2021   23:40:18   (  69.92,-178.65) 09/20/2021   23:39:56  (  69.95,-178.65)    2.68                22
 09/21/2021   00:30:46   ( -69.09, -10.13) 09/21/2021   00:29:38  ( -69.18, -12.05)   76.95                68
 09/23/2021   15:06:28   ( -70.01, 129.68) 09/23/2021   15:06:59  ( -70.02, 129.69)    0.42                31
 09/23/2021   15:57:12   (  69.90, -62.85) 09/23/2021   15:56:26  (  69.90, -62.82)    0.88                46
 09/26/2021   06:32:44   (  70.36,  77.60) 09/26/2021   06:33:55  (  70.24,  78.26)   27.62                71
 09/26/2021   07:23:21   ( -69.99,-114.52) 09/26/2021   07:23:28  ( -69.97,-114.49)    2.48                 7
 09/26/2021   08:14:04   (  69.83,  53.03) 09/26/2021   08:12:55  (  69.86,  52.99)    3.09                69