Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 3 23.  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)
 03/23/2021   14:15:39   ( -71.07, 140.98) 03/23/2021   14:16:46  ( -70.95, 143.35)   86.81                67
 03/23/2021   15:06:08   (  70.16, -50.25) 03/23/2021   15:06:26  (  70.14, -50.21)    3.18                18
 03/23/2021   15:56:49   ( -70.02, 117.28) 03/23/2021   15:55:56  ( -70.02, 117.26)    0.69                53
 03/26/2021   06:32:19   ( -70.24,-101.91) 03/26/2021   06:33:27  ( -70.22,-101.86)    2.81                68
 03/26/2021   07:23:03   (  70.12,  65.58) 03/26/2021   07:22:54  (  70.11,  65.63)    2.28                 9
 03/26/2021   08:13:40   ( -69.77,-126.57) 03/26/2021   08:12:27  ( -69.84,-127.12)   22.42                73
 03/28/2021   22:49:15   ( -70.19,  13.91) 03/28/2021   22:49:56  ( -70.19,  13.98)    2.56                41
 03/28/2021   23:39:59   (  70.08,-178.60) 03/28/2021   23:39:23  (  70.09,-178.53)    2.82                36
 03/31/2021   14:15:39   (  70.77, -38.57) 03/31/2021   14:16:48  (  70.65, -37.10)   55.43                69
 03/31/2021   15:06:10   ( -70.10, 129.82) 03/31/2021   15:06:26  ( -70.11, 129.74)    3.23                16
 03/31/2021   15:56:54   (  69.99, -62.70) 03/31/2021   15:55:53  (  70.00, -62.78)    3.13                61
 04/03/2021   06:32:25   (  70.21,  78.09) 04/03/2021   06:33:24  (  70.23,  78.15)    3.31                59
 04/03/2021   07:23:06   ( -70.06,-114.37) 04/03/2021   07:22:55  ( -70.08,-114.44)    3.14                11
 04/03/2021   08:13:40   (  69.42,  53.89) 04/03/2021   08:12:31  (  69.46,  52.37)   59.80                69
 04/05/2021   22:49:20   (  70.18,-166.10) 04/05/2021   22:49:52  (  70.19,-166.03)    2.90                32
 04/05/2021   23:40:01   ( -70.03,   1.45) 04/05/2021   23:39:23  ( -70.04,   1.39)    2.79                38