Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2023 11 6.  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   (  69.93, -65.91) 11/06/2023   16:08:39  (  69.93, -65.88)    1.39                31
 11/06/2023   16:58:50   ( -69.83, 101.55) 11/06/2023   16:58:09  ( -69.82, 101.60)    2.23                41
 11/09/2023   07:34:27   ( -70.32,-118.07) 11/09/2023   07:35:38  ( -70.18,-117.29)   33.07                71
 11/09/2023   08:25:05   (  69.89,  49.90) 11/09/2023   08:25:08  (  69.91,  49.97)    3.48                 3
 11/09/2023   09:15:46   ( -69.74,-142.56) 11/09/2023   09:14:39  ( -69.75,-142.62)    2.44                67
 11/11/2023   23:51:18   ( -69.93,  -1.72) 11/11/2023   23:52:11  ( -69.93,  -1.76)    1.95                53
 11/12/2023   00:42:02   (  69.83, 165.76) 11/12/2023   00:41:38  (  69.82, 165.73)    1.27                24
 11/12/2023   01:32:29   ( -68.93, -25.65) 11/12/2023   01:31:21  ( -69.00, -27.74)   83.70                68
 11/14/2023   15:17:49   (  70.83, -54.69) 11/14/2023   15:18:55  (  70.76, -52.30)   87.74                66
 11/14/2023   16:08:15   ( -69.88, 114.12) 11/14/2023   16:08:39  ( -69.88, 114.06)    2.42                24
 11/14/2023   16:58:59   (  69.78, -78.41) 11/14/2023   16:58:06  (  69.77, -78.45)    1.89                53
 11/17/2023   07:34:30   (  69.96,  62.45) 11/17/2023   07:35:35  (  69.98,  62.46)    2.29                65
 11/17/2023   08:25:12   ( -69.85,-130.07) 11/17/2023   08:25:05  ( -69.87,-130.06)    2.69                 7
 11/17/2023   09:15:49   (  69.37,  37.93) 11/17/2023   09:14:38  (  69.42,  36.98)   37.83                71
 11/19/2023   23:51:25   (  69.89, 178.32) 11/19/2023   23:52:00  (  69.90, 178.24)    2.81                35
 11/20/2023   00:42:07   ( -69.78, -14.20) 11/20/2023   00:41:30  ( -69.79, -14.27)    2.85                37