Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 1 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)
 01/14/2024   23:51:34   ( -69.98,  -1.83) 01/14/2024   23:52:18  ( -69.96,  -1.77)    2.88                44
 01/15/2024   00:42:18   (  69.85, 165.66) 01/15/2024   00:41:45  (  69.85, 165.73)    2.39                33
 01/17/2024   15:17:59   (  70.77, -54.62) 01/17/2024   15:19:06  (  70.66, -52.51)   78.64                67
 01/17/2024   16:08:26   ( -69.90, 114.07) 01/17/2024   16:08:48  ( -69.89, 114.01)    2.27                22
 01/17/2024   16:59:10   (  69.78, -78.44) 01/17/2024   16:58:15  (  69.78, -78.49)    2.04                55
 01/20/2024   07:34:38   (  70.02,  62.34) 01/20/2024   07:35:46  (  70.00,  62.42)    3.54                68
 01/20/2024   08:25:19   ( -69.88,-130.13) 01/20/2024   08:25:16  ( -69.89,-130.10)    1.60                 3
 01/20/2024   09:15:59   (  69.55,  37.67) 01/20/2024   09:14:46  (  69.62,  37.16)   20.80                73
 01/22/2024   23:51:29   (  69.97, 178.21) 01/22/2024   23:52:13  (  69.96, 178.25)    1.67                44
 01/23/2024   00:42:10   ( -69.83, -14.26) 01/23/2024   00:41:43  ( -69.86, -14.26)    3.42                27
 01/25/2024   15:17:53   ( -70.88, 125.24) 01/25/2024   15:19:00  ( -70.77, 127.67)   89.64                67
 01/25/2024   16:08:21   (  69.92, -65.94) 01/25/2024   16:08:40  (  69.94, -65.89)    2.95                19
 01/25/2024   16:59:02   ( -69.78, 101.59) 01/25/2024   16:58:11  ( -69.79, 101.52)    2.40                51