Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 9 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)
 10/01/2021   15:06:26   (  70.00, -50.30) 10/01/2021   15:07:01  (  70.02, -50.32)    2.68                35
 10/01/2021   15:57:08   ( -69.91, 117.15) 10/01/2021   15:56:31  ( -69.90, 117.15)    0.64                37
 10/04/2021   06:32:47   ( -70.68,-102.90) 10/04/2021   06:33:56  ( -70.56,-101.30)   60.54                69
 10/04/2021   07:23:20   (  69.99,  65.49) 10/04/2021   07:23:32  (  69.97,  65.49)    2.24                12
 10/04/2021   08:14:01   ( -69.85,-126.98) 10/04/2021   08:13:02  ( -69.86,-127.04)    2.67                59
 10/06/2021   22:49:28   ( -70.04,  13.88) 10/06/2021   22:50:34  ( -70.07,  13.86)    3.42                66
 10/06/2021   23:40:12   (  69.93,-178.65) 10/06/2021   23:40:02  (  69.91,-178.72)    3.43                10
 10/07/2021   00:30:48   ( -69.52, -10.72) 10/07/2021   00:29:36  ( -69.58, -11.54)   32.47                72
 10/09/2021   15:06:22   ( -70.03, 129.66) 10/09/2021   15:07:05  ( -70.01, 129.65)    2.70                43
 10/09/2021   15:57:06   (  69.93, -62.87) 10/09/2021   15:56:32  (  69.90, -62.85)    2.94                34
 10/12/2021   06:32:47   (  70.82,  76.88) 10/12/2021   06:33:54  (  70.71,  78.92)   75.77                67
 10/12/2021   07:23:15   ( -69.98,-114.48) 10/12/2021   07:23:35  ( -70.00,-114.48)    2.23                20
 10/12/2021   08:13:59   (  69.88,  52.99) 10/12/2021   08:13:02  (  69.89,  53.01)    1.59                57