Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 1 11.  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)
 01/12/2024   07:34:40   ( -69.96,-117.59) 01/12/2024   07:35:48  ( -69.98,-117.62)    2.07                68
 01/12/2024   08:25:25   (  69.89,  49.82) 01/12/2024   08:25:15  (  69.88,  49.88)    2.84                10
 01/12/2024   09:16:01   ( -69.50,-142.27) 01/12/2024   09:14:49  ( -69.55,-142.94)   26.39                72
 01/14/2024   23:51:33   ( -69.93,  -1.76) 01/14/2024   23:52:18  ( -69.96,  -1.78)    3.12                45
 01/15/2024   00:42:18   (  69.86, 165.65) 01/15/2024   00:41:45  (  69.85, 165.72)    2.77                33
 01/17/2024   15:17:59   (  70.78, -54.63) 01/17/2024   15:19:06  (  70.66, -52.50)   79.20                67
 01/17/2024   16:08:26   ( -69.90, 114.06) 01/17/2024   16:08:48  ( -69.90, 114.02)    1.79                22
 01/17/2024   16:59:10   (  69.78, -78.45) 01/17/2024   16:58:15  (  69.78, -78.49)    1.43                55
 01/20/2024   07:34:37   (  69.97,  62.42) 01/20/2024   07:35:47  (  69.96,  62.36)    2.73                70
 01/20/2024   08:25:19   ( -69.89,-130.14) 01/20/2024   08:25:16  ( -69.91,-130.08)    3.32                 3
 01/20/2024   09:15:59   (  69.56,  37.66) 01/20/2024   09:14:47  (  69.58,  37.11)   21.51                72
 01/22/2024   23:51:28   (  69.92, 178.28) 01/22/2024   23:52:14  (  69.94, 178.21)    3.44                46
 01/23/2024   00:42:10   ( -69.83, -14.27) 01/23/2024   00:41:44  ( -69.83, -14.30)    1.29                26