Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 2 13.  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)
 02/13/2024   07:34:26   ( -70.99,-119.06) 02/13/2024   07:35:32  ( -70.87,-116.34)   99.92                66
 02/13/2024   08:24:52   (  69.93,  49.94) 02/13/2024   08:25:15  (  69.91,  49.88)    3.27                23
 02/13/2024   09:15:34   ( -69.85,-142.62) 02/13/2024   09:14:44  ( -69.84,-142.57)    2.34                50
 02/15/2024   23:51:01   ( -70.16,  -1.92) 02/15/2024   23:52:13  ( -70.10,  -1.60)   13.75                72
 02/16/2024   00:41:42   (  69.88, 165.80) 02/16/2024   00:41:42  (  69.89, 165.75)    2.41                 0
 02/16/2024   01:32:24   ( -69.80, -26.76) 02/16/2024   01:31:12  ( -69.77, -26.78)    3.05                72
 02/18/2024   16:07:48   ( -70.01, 114.09) 02/18/2024   16:08:40  ( -70.00, 114.14)    2.67                52
 02/18/2024   16:58:32   (  69.90, -78.43) 02/18/2024   16:58:07  (  69.89, -78.35)    2.88                25
 02/18/2024   17:48:58   ( -68.96,  90.23) 02/18/2024   17:47:51  ( -69.00,  88.09)   85.39                67
 02/21/2024   08:24:37   ( -69.93,-130.00) 02/21/2024   08:25:06  ( -69.96,-130.01)    3.16                29
 02/21/2024   09:15:21   (  69.82,  37.48) 02/21/2024   09:14:33  (  69.86,  37.48)    3.59                48
 02/23/2024   23:50:48   (  70.17, 178.12) 02/23/2024   23:52:00  (  70.11, 178.46)   14.69                72
 02/24/2024   00:41:27   ( -69.92, -14.18) 02/24/2024   00:41:31  ( -69.94, -14.15)    2.61                 4
 02/24/2024   01:32:11   (  69.81, 153.29) 02/24/2024   01:30:58  (  69.83, 153.35)    3.03                73
 02/26/2024   16:07:35   (  70.02, -65.85) 02/26/2024   16:08:26  (  69.99, -65.81)    3.30                51
 02/26/2024   16:58:16   ( -69.87, 101.69) 02/26/2024   16:57:56  ( -69.88, 101.67)    1.63                20