Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 1 9.  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)
 01/10/2021   15:06:08   ( -70.07, 129.71) 01/10/2021   15:06:53  ( -70.05, 129.71)    1.65                45
 01/10/2021   15:56:52   (  69.95, -62.80) 01/10/2021   15:56:20  (  69.95, -62.79)    0.51                32
 01/13/2021   06:32:33   (  70.76,  77.07) 01/13/2021   06:33:41  (  70.70,  78.91)   67.90                68
 01/13/2021   07:23:03   ( -70.04,-114.48) 01/13/2021   07:23:21  ( -70.04,-114.42)    2.06                18
 01/13/2021   08:13:47   (  69.92,  53.01) 01/13/2021   08:12:48  (  69.94,  53.07)    2.73                59
 01/15/2021   22:49:15   (  70.11,-166.12) 01/15/2021   22:50:19  (  70.08,-166.12)    3.05                64
 01/15/2021   23:39:56   ( -69.97,   1.41) 01/15/2021   23:39:49  ( -69.97,   1.36)    2.10                 7
 01/16/2021   00:30:33   (  69.48, 169.44) 01/16/2021   00:29:22  (  69.53, 168.40)   40.97                71
 01/18/2021   15:06:09   (  70.04, -50.24) 01/18/2021   15:06:47  (  70.06, -50.27)    2.70                38
 01/18/2021   15:56:51   ( -69.94, 117.22) 01/18/2021   15:56:17  ( -69.95, 117.22)    1.21                34
 01/21/2021   06:32:31   ( -70.70,-102.83) 01/21/2021   06:33:40  ( -70.58,-101.26)   59.23                69
 01/21/2021   07:23:04   (  70.02,  65.56) 01/21/2021   07:23:15  (  70.03,  65.58)    1.75                11
 01/21/2021   08:13:46   ( -69.92,-126.98) 01/21/2021   08:12:45  ( -69.93,-126.93)    1.90                61