Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and AQUA
TLE Epoch: 2023 12 10.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(AQUA) AQUA Lat/Lon    Distance(km)  Time Diff(sec)
 12/11/2023   22:03:15   (  81.04, 125.83) 12/11/2023   22:03:38  (  81.05, 125.88)    0.91                23
 12/11/2023   22:53:58   ( -81.07, -66.01) 12/11/2023   22:53:01  ( -81.07, -66.08)    1.30                57
 12/14/2023   11:47:56   ( -81.05,  99.81) 12/14/2023   11:47:53  ( -81.05,  99.94)    2.21                 3
 12/17/2023   00:41:53   ( -81.03, -94.03) 12/17/2023   00:42:44  ( -81.04, -93.90)    2.32                51
 12/17/2023   01:32:36   (  81.06,  73.87) 12/17/2023   01:32:06  (  81.06,  73.99)    2.06                30
 12/19/2023   14:26:31   (  81.06,-119.65) 12/19/2023   14:26:55  (  81.05,-119.73)    1.40                24
 12/19/2023   15:17:15   ( -81.07,  48.17) 12/19/2023   15:16:18  ( -81.08,  48.34)    3.09                57