Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 1 24.  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)
 01/25/2024   15:17:52   ( -70.86, 125.27) 01/25/2024   15:18:59  ( -70.77, 127.67)   88.38                67
 01/25/2024   16:08:20   (  69.90, -65.90) 01/25/2024   16:08:40  (  69.90, -65.95)    1.99                20
 01/25/2024   16:59:02   ( -69.82, 101.53) 01/25/2024   16:58:09  ( -69.84, 101.60)    3.41                53
 01/28/2024   07:34:28   ( -70.00,-117.57) 01/28/2024   07:35:39  ( -69.99,-117.58)    0.71                71
 01/28/2024   08:25:12   (  69.88,  49.92) 01/28/2024   08:25:06  (  69.88,  49.92)    0.92                 6
 01/28/2024   09:15:51   ( -69.64,-142.41) 01/28/2024   09:14:38  ( -69.66,-142.76)   13.59                73
 01/30/2024   23:51:18   ( -69.93,  -1.69) 01/30/2024   23:52:04  ( -69.94,  -1.75)    2.75                46
 01/31/2024   00:42:02   (  69.81, 165.80) 01/31/2024   00:41:31  (  69.83, 165.74)    3.08                31
 02/02/2024   15:17:41   (  70.70, -54.42) 02/02/2024   15:18:49  (  70.56, -52.59)   69.34                68
 02/02/2024   16:08:10   ( -69.93, 114.10) 02/02/2024   16:08:29  ( -69.91, 114.10)    2.40                19
 02/02/2024   16:58:54   (  69.81, -78.41) 02/02/2024   16:57:56  (  69.79, -78.42)    2.15                58
 02/05/2024   07:34:19   (  69.97,  62.51) 02/05/2024   07:35:23  (  70.00,  62.49)    3.05                64
 02/05/2024   08:25:01   ( -69.88,-130.04) 02/05/2024   08:24:53  ( -69.89,-130.03)    1.00                 8
 02/05/2024   09:15:37   (  69.34,  38.06) 02/05/2024   09:14:27  (  69.39,  36.94)   44.15                70