Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and LANDSAT-8
TLE Epoch: 2021 12 3.  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)
 12/04/2021   15:05:48   (  70.10, -50.29) 12/04/2021   15:07:00  (  70.08, -50.25)    2.24                72
 12/04/2021   15:56:29   ( -69.96, 117.24) 12/04/2021   15:56:30  ( -69.97, 117.23)    1.44                 1
 12/04/2021   16:47:11   (  69.74, -75.12) 12/04/2021   16:45:59  (  69.76, -75.43)   12.06                72
 12/07/2021   07:22:40   (  70.05,  65.56) 12/07/2021   07:23:30  (  70.03,  65.55)    3.09                50
 12/07/2021   08:13:21   ( -69.91,-126.91) 12/07/2021   08:13:00  ( -69.92,-126.97)    2.23                21
 12/07/2021   09:03:48   (  68.89,  41.86) 12/07/2021   09:02:42  (  68.98,  39.42)   98.00                66
 12/09/2021   23:39:31   (  70.01,-178.59) 12/09/2021   23:39:58  (  70.02,-178.59)    0.51                27
 12/10/2021   00:30:13   ( -69.92, -11.14) 12/10/2021   00:29:28  ( -69.91, -11.10)    2.09                45
 12/12/2021   15:05:45   ( -70.40, 129.28) 12/12/2021   15:06:56  ( -70.33, 130.10)   31.67                71
 12/12/2021   15:56:23   (  69.97, -62.75) 12/12/2021   15:56:27  (  70.00, -62.73)    2.88                 4
 12/12/2021   16:47:05   ( -69.88, 104.70) 12/12/2021   16:45:57  ( -69.90, 104.76)    2.77                68
 12/15/2021   07:22:31   ( -70.05,-114.39) 12/15/2021   07:23:30  ( -70.03,-114.44)    2.43                59
 12/15/2021   08:13:15   (  69.94,  53.09) 12/15/2021   08:12:57  (  69.92,  53.04)    2.85                18