Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 1 18.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 01/20/2024   07:34:37   (  69.99,  62.39) 01/20/2024   07:35:46  (  69.97,  62.37)    2.33                69
 01/20/2024   08:25:18   ( -69.86,-130.09) 01/20/2024   08:25:16  ( -69.86,-130.15)    2.27                 2
 01/20/2024   09:15:58   (  69.52,  37.71) 01/20/2024   09:14:46  (  69.59,  37.12)   24.01                72
 01/22/2024   23:51:29   (  69.95, 178.24) 01/22/2024   23:52:13  (  69.97, 178.27)    3.27                44
 01/23/2024   00:42:11   ( -69.86, -14.32) 01/23/2024   00:41:43  ( -69.86, -14.26)    2.38                28
 01/25/2024   15:17:52   ( -70.87, 125.25) 01/25/2024   15:18:59  ( -70.76, 127.66)   88.80                67
 01/25/2024   16:08:20   (  69.91, -65.93) 01/25/2024   16:08:39  (  69.94, -65.90)    2.70                19
 01/25/2024   16:59:02   ( -69.83, 101.52) 01/25/2024   16:58:09  ( -69.83, 101.58)    2.61                53
 01/28/2024   07:34:28   ( -70.01,-117.60) 01/28/2024   07:35:38  ( -70.03,-117.52)    3.17                70
 01/28/2024   08:25:12   (  69.90,  49.89) 01/28/2024   08:25:05  (  69.91,  49.96)    3.43                 7
 01/28/2024   09:15:50   ( -69.60,-142.35) 01/28/2024   09:14:38  ( -69.64,-142.78)   17.10                72
 01/30/2024   23:51:19   ( -69.95,  -1.72) 01/30/2024   23:52:04  ( -69.96,  -1.72)    1.44                45
 01/31/2024   00:42:03   (  69.84, 165.76) 01/31/2024   00:41:31  (  69.85, 165.77)    1.08                32