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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1487891465576853 4.4896e-08  
a 3.151749070290758 2.4197e-08 au
q 2.682803015958218 1.4201e-07 au
i 1.495223653837223 5.062e-06 deg
node 149.5110596009023 0.00017902 deg
peri 27.40019245902796 0.0001797 deg
M 180.5470595545166 1.6439e-05 deg
tp 2459619.264856633193
(2022-Feb-08.76485663)
9.9318e-05 TDB
period 2043.741091550224
5.60
2.3536e-05
6.444e-08
d
yr
n .1761475567959206 2.0285e-09 deg/d
Q 3.620695124623298 2.7797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      7671 days (21.00 yr)  
   first obs. used      1998-10-28  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56756  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:52:33  

Additional Information
 Earth MOID = 1.68759 au 
 Jupiter MOID = 1.34235 au 
 T_jup = 3.190 
[ 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 15.0   n/a MPO375514  
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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