Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2023 11 5.  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)
 11/06/2023   16:08:08   (  69.94, -65.93) 11/06/2023   16:08:39  (  69.93, -65.88)    2.04                31
 11/06/2023   16:58:49   ( -69.79, 101.61) 11/06/2023   16:58:09  ( -69.82, 101.60)    3.10                40
 11/09/2023   07:34:28   ( -70.32,-118.07) 11/09/2023   07:35:39  ( -70.22,-117.24)   33.20                71
 11/09/2023   08:25:06   (  69.90,  49.89) 11/09/2023   08:25:10  (  69.89,  49.94)    1.93                 4
 11/09/2023   09:15:48   ( -69.80,-142.64) 11/09/2023   09:14:40  ( -69.79,-142.57)    2.87                68
 11/11/2023   23:51:19   ( -69.97,  -1.77) 11/11/2023   23:52:12  ( -69.98,  -1.71)    2.54                53
 11/12/2023   00:42:02   (  69.81, 165.78) 11/12/2023   00:41:40  (  69.81, 165.71)    2.61                22
 11/12/2023   01:32:30   ( -68.97, -25.70) 11/12/2023   01:31:22  ( -69.04, -27.68)   79.47                68
 11/14/2023   15:17:52   (  70.95, -54.89) 11/14/2023   15:18:57  (  70.83, -52.20)   98.83                65
 11/14/2023   16:08:16   ( -69.90, 114.10) 11/14/2023   16:08:42  ( -69.90, 114.07)    1.14                26
 11/14/2023   16:59:00   (  69.79, -78.44) 11/14/2023   16:58:09  (  69.79, -78.44)    0.19                51
 11/17/2023   07:34:32   (  70.00,  62.39) 11/17/2023   07:35:40  (  70.00,  62.46)    2.62                68
 11/17/2023   08:25:14   ( -69.89,-130.13) 11/17/2023   08:25:10  ( -69.89,-130.05)    2.98                 4
 11/17/2023   09:15:53   (  69.52,  37.72) 11/17/2023   09:14:41  (  69.56,  37.13)   23.23                72