Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 3 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)
 03/13/2024   15:17:58   ( -70.18, 126.34) 03/13/2024   15:19:10  ( -70.12, 126.64)   12.98                72
 03/13/2024   16:08:39   (  69.90, -65.93) 03/13/2024   16:08:39  (  69.91, -66.01)    3.26                 0
 03/13/2024   16:59:21   ( -69.81, 101.52) 03/13/2024   16:58:09  ( -69.80, 101.46)    2.46                72
 03/16/2024   07:34:53   ( -69.99,-117.62) 03/16/2024   07:35:40  ( -69.99,-117.66)    1.68                47
 03/16/2024   08:25:37   (  69.87,  49.86) 03/16/2024   08:25:07  (  69.89,  49.84)    1.78                30
 03/18/2024   23:01:20   (  70.65,-170.21) 03/18/2024   23:02:29  (  70.55,-168.60)   60.28                69
 03/18/2024   23:51:51   ( -69.97,  -1.82) 03/18/2024   23:52:08  ( -69.95,  -1.84)    2.47                17
 03/19/2024   00:42:35   (  69.86, 165.65) 03/19/2024   00:41:35  (  69.84, 165.65)    2.47                60
 03/21/2024   15:18:05   (  70.01, -53.44) 03/21/2024   15:19:04  (  70.03, -53.47)    2.95                59
 03/21/2024   16:08:47   ( -69.91, 114.03) 03/21/2024   16:08:34  ( -69.93, 114.02)    2.76                13
 03/21/2024   16:59:20   (  69.21, -77.65) 03/21/2024   16:58:11  (  69.26, -79.24)   62.81                69
 03/24/2024   07:35:03   (  70.01,  62.32) 03/24/2024   07:35:31  (  69.99,  62.35)    2.98                28
 03/24/2024   08:25:45   ( -69.90,-130.20) 03/24/2024   08:25:01  ( -69.88,-130.16)    2.59                44
 03/26/2024   23:01:18   ( -70.17,  10.53) 03/26/2024   23:02:29  ( -70.14,  10.82)   11.26                71
 03/26/2024   23:52:00   (  69.97, 178.15) 03/26/2024   23:51:57  (  69.97, 178.22)    2.48                 3
 03/27/2024   00:42:41   ( -69.80, -14.29) 03/27/2024   00:41:28  ( -69.81, -14.37)    3.25                73