Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 1 25.  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)
 01/25/2024   16:08:20   (  69.91, -65.92) 01/25/2024   16:08:43  (  69.90, -65.97)    2.31                23
 01/25/2024   16:59:02   ( -69.83, 101.51) 01/25/2024   16:58:12  ( -69.84, 101.58)    2.88                50
 01/28/2024   07:34:33   ( -70.28,-118.01) 01/28/2024   07:35:44  ( -70.17,-117.36)   27.06                71
 01/28/2024   08:25:12   (  69.89,  49.89) 01/28/2024   08:25:14  (  69.90,  49.91)    1.51                 2
 01/28/2024   09:15:54   ( -69.81,-142.67) 01/28/2024   09:14:44  ( -69.79,-142.61)    3.12                70
 01/30/2024   23:51:19   ( -69.95,  -1.72) 01/30/2024   23:52:18  ( -69.97,  -1.77)    2.93                59
 01/31/2024   00:42:04   (  69.89, 165.69) 01/31/2024   00:41:45  (  69.87, 165.73)    2.52                19
 01/31/2024   01:32:34   ( -69.17, -25.95) 01/31/2024   01:31:25  ( -69.21, -27.52)   62.19                69
 02/02/2024   16:08:10   ( -69.96, 114.06) 02/02/2024   16:08:47  ( -69.95, 114.08)    0.77                37
 02/02/2024   16:58:54   (  69.84, -78.45) 02/02/2024   16:58:14  (  69.85, -78.42)    1.44                40
 02/05/2024   07:34:30   (  70.59,  61.55) 02/05/2024   07:35:39  (  70.44,  63.03)   57.22                69
 02/05/2024   08:25:01   ( -69.92,-130.09) 02/05/2024   08:25:17  ( -69.89,-130.12)    3.09                16
 02/05/2024   09:15:45   (  69.81,  37.39) 02/05/2024   09:14:44  (  69.78,  37.37)    2.56                61
 02/07/2024   23:51:10   (  69.98, 178.28) 02/07/2024   23:52:15  (  70.01, 178.28)    2.40                65
 02/08/2024   00:41:52   ( -69.89, -14.27) 02/08/2024   00:41:45  ( -69.90, -14.23)    1.49                 7
 02/08/2024   01:32:29   (  69.41, 153.75) 02/08/2024   01:31:18  (  69.46, 152.81)   37.10                71