Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 1 20.  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   (  70.01,  62.37) 01/20/2024   07:35:45  (  70.01,  62.43)    2.22                68
 01/20/2024   08:25:18   ( -69.88,-130.12) 01/20/2024   08:25:15  ( -69.89,-130.10)    1.88                 3
 01/20/2024   09:15:58   (  69.54,  37.69) 01/20/2024   09:14:46  (  69.57,  37.10)   23.25                72
 01/22/2024   23:51:29   (  69.96, 178.22) 01/22/2024   23:52:13  (  69.96, 178.24)    0.99                44
 01/23/2024   00:42:10   ( -69.83, -14.27) 01/23/2024   00:41:43  ( -69.85, -14.28)    1.83                27
 01/25/2024   15:17:53   ( -70.89, 125.22) 01/25/2024   15:18:59  ( -70.80, 127.72)   91.59                66
 01/25/2024   16:08:21   (  69.93, -65.95) 01/25/2024   16:08:40  (  69.93, -65.91)    1.48                19
 01/25/2024   16:59:02   ( -69.80, 101.57) 01/25/2024   16:58:10  ( -69.81, 101.56)    2.01                52
 01/28/2024   07:34:27   ( -69.98,-117.54) 01/28/2024   07:35:39  ( -69.96,-117.61)    3.03                72
 01/28/2024   08:25:11   (  69.86,  49.94) 01/28/2024   08:25:06  (  69.85,  49.88)    2.62                 5
 01/28/2024   09:15:50   ( -69.62,-142.38) 01/28/2024   09:14:37  ( -69.69,-142.72)   15.27                73
 01/30/2024   23:51:19   ( -69.97,  -1.74) 01/30/2024   23:52:04  ( -69.97,  -1.72)    1.04                45
 01/31/2024   00:42:03   (  69.85, 165.74) 01/31/2024   00:41:31  (  69.85, 165.77)    1.28                32
 02/02/2024   15:17:41   (  70.69, -54.41) 02/02/2024   15:18:49  (  70.58, -52.55)   69.65                68
 02/02/2024   16:08:10   ( -69.92, 114.12) 02/02/2024   16:08:29  ( -69.93, 114.13)    1.12                19
 02/02/2024   16:58:54   (  69.81, -78.41) 02/02/2024   16:57:56  (  69.81, -78.39)    0.87                58