Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 12 12.  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)
 12/12/2021   15:05:46   ( -70.43, 129.23) 12/12/2021   15:06:57  ( -70.30, 130.05)   34.24                71
 12/12/2021   15:56:24   (  70.00, -62.79) 12/12/2021   15:56:28  (  69.97, -62.77)    2.64                 4
 12/12/2021   16:47:05   ( -69.86, 104.73) 12/12/2021   16:45:58  ( -69.86, 104.71)    0.84                67
 12/15/2021   07:22:31   ( -70.08,-114.44) 12/15/2021   07:23:29  ( -70.06,-114.41)    2.19                58
 12/15/2021   08:13:15   (  69.96,  53.05) 12/15/2021   08:12:56  (  69.95,  53.08)    1.40                19
 12/15/2021   09:03:45   ( -69.24,-138.58) 12/15/2021   09:02:36  ( -69.29,-140.18)   63.05                69
 12/17/2021   23:39:23   ( -70.04,   1.40) 12/17/2021   23:39:58  ( -70.04,   1.44)    1.57                35
 12/18/2021   00:30:07   (  69.92, 168.89) 12/18/2021   00:29:25  (  69.93, 168.93)    1.84                42
 12/20/2021   15:05:41   (  70.52, -50.88) 12/20/2021   15:06:51  (  70.45, -49.72)   43.67                70
 12/20/2021   15:56:15   ( -70.01, 117.24) 12/20/2021   15:56:27  ( -70.02, 117.29)    2.11                12
 12/20/2021   16:46:59   (  69.89, -75.28) 12/20/2021   16:45:54  (  69.90, -75.23)    2.36                65
 12/23/2021   07:22:25   (  70.07,  65.61) 12/23/2021   07:23:26  (  70.09,  65.64)    2.24                61
 12/23/2021   08:13:07   ( -69.98,-126.93) 12/23/2021   08:12:56  ( -69.99,-126.87)    2.44                11
 12/23/2021   09:03:41   (  69.33,  41.32) 12/23/2021   09:02:31  (  69.43,  40.01)   52.35                70
 12/25/2021   23:39:16   (  70.04,-178.56) 12/25/2021   23:39:54  (  70.05,-178.53)    1.44                38
 12/26/2021   00:29:58   ( -69.95, -11.11) 12/26/2021   00:29:24  ( -69.95, -11.04)    2.57                34