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74418 (1999 AQ11)
Classification: Main-belt Asteroid          SPK-ID: 2074418
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1482174259637448 4.3743e-08  
a 3.1542611831639 2.3765e-08 au
q 2.68674470977799 1.3946e-07 au
i 1.495199834751178 4.8953e-06 deg
node 149.4884794447022 0.00017763 deg
peri 27.17054630687051 0.00017831 deg
M 320.904513821243 1.7162e-05 deg
tp 2459618.712774330479
(2022-Feb-08.21277433)
9.8909e-05 TDB
period 2046.18503510105
5.60
2.3125e-05
6.331e-08
d
yr
n .1759371678633265 1.9883e-09 deg/d
Q 3.621777656549809 2.7288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      8092 days (22.15 yr)  
   first obs. used      1998-10-28  
   last obs. used      2020-12-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54903  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:13:18  

Additional Information
 Earth MOID = 1.69195 au 
 Jupiter MOID = 1.33826 au 
 T_jup = 3.189 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.02   n/a MPCxxxxx  
diameter diameter 5.473 km 0.247 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74418 (1999 AQ11)          Discovered 1999-Jan-07 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AQ11 = 2000 HL51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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