Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2022 11 30.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 11/30/2022   05:56:17   ( -70.17, -92.69) 11/30/2022   05:57:09  ( -70.16, -92.65)    1.68                52
 11/30/2022   06:46:59   (  70.02,  74.85) 11/30/2022   06:46:37  (  70.01,  74.78)    2.58                22
 11/30/2022   07:37:21   ( -69.82,-117.47) 11/30/2022   07:36:08  ( -69.84,-117.83)   13.92                73
 12/03/2022   06:26:50   ( -70.35,-100.59) 12/03/2022   06:28:01  ( -70.30,-100.18)   16.58                71
 12/03/2022   07:17:30   (  70.08,  67.14) 12/03/2022   07:17:30  (  70.09,  67.16)    1.27                 0
 12/03/2022   08:07:54   ( -70.01,-125.36) 12/03/2022   08:06:59  ( -70.03,-125.29)    3.46                55
 12/06/2022   07:47:59   (  70.12,  59.48) 12/06/2022   07:48:23  (  70.09,  59.44)    2.83                24
 12/06/2022   08:38:23   ( -70.06,-133.04) 12/06/2022   08:37:52  ( -70.04,-133.00)    2.39                31
 12/09/2022   08:18:29   (  70.18,  51.78) 12/09/2022   08:19:15  (  70.19,  51.85)    3.16                46
 12/09/2022   09:08:52   ( -70.06,-140.65) 12/09/2022   09:08:45  ( -70.08,-140.66)    2.14                 7
 12/09/2022   09:59:29   (  69.62,  27.32) 12/09/2022   09:58:18  (  69.64,  26.37)   36.85                71
 12/12/2022   08:48:58   (  70.21,  44.12) 12/12/2022   08:50:08  (  70.21,  44.16)    1.56                70
 12/12/2022   09:39:20   ( -70.08,-148.29) 12/12/2022   09:39:37  ( -70.11,-148.35)    3.37                17
 12/12/2022   10:30:03   (  69.97,  19.19) 12/12/2022   10:29:04  (  69.99,  19.13)    3.08                59