Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 7.  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)
 06/09/2024   14:27:41   ( -70.22, 139.01) 06/09/2024   14:28:52  ( -70.19, 139.09)    3.99                71
 06/09/2024   15:18:25   (  70.08, -53.47) 06/09/2024   15:18:19  (  70.09, -53.41)    2.44                 6
 06/09/2024   16:09:04   ( -69.85, 114.20) 06/09/2024   16:07:51  ( -69.86, 113.91)   11.47                73
 06/12/2024   06:44:39   ( -70.15,-105.13) 06/12/2024   06:45:20  ( -70.13,-105.12)    3.02                41
 06/12/2024   07:35:23   (  70.02,  62.38) 06/12/2024   07:34:47  (  70.02,  62.37)    0.32                36
 06/14/2024   22:11:02   (  70.55,-157.31) 06/14/2024   22:12:13  (  70.41,-156.46)   35.42                71
 06/14/2024   23:01:37   ( -70.10,  10.71) 06/14/2024   23:01:47  ( -70.08,  10.69)    2.99                10
 06/14/2024   23:52:21   (  69.97, 178.22) 06/14/2024   23:51:14  (  69.97, 178.18)    1.46                67
 06/17/2024   14:27:53   (  70.15, -40.91) 06/17/2024   14:28:43  (  70.15, -40.95)    1.50                50
 06/17/2024   15:18:35   ( -70.06, 126.54) 06/17/2024   15:18:13  ( -70.04, 126.53)    2.40                22
 06/17/2024   16:09:02   (  69.03, -64.66) 06/17/2024   16:07:56  (  69.04, -67.17)   99.91                66
 06/20/2024   05:54:21   ( -71.02, -93.88) 06/20/2024   05:55:28  ( -70.89, -91.60)   83.91                67
 06/20/2024   06:44:50   (  70.12,  74.89) 06/20/2024   06:45:07  (  70.13,  74.91)    0.89                17
 06/20/2024   07:35:32   ( -70.03,-117.65) 06/20/2024   07:34:37  ( -70.02,-117.61)    2.20                55