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JPL Small-Body Database Browser
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47085 (1999 AW2)
Classification: Main-belt Asteroid          SPK-ID: 2047085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1769253400645572 4.1694e-08  
a 3.113544549333426 2.0171e-08 au
q 2.562679621136461 1.357e-07 au
i 1.431831090481375 4.3772e-06 deg
node 54.73429073223625 0.00017874 deg
peri 337.206655376721 0.00017911 deg
M 310.4753566311493 1.097e-05 deg
tp 2458876.557727821764
(2020-Jan-28.05772782)
6.1262e-05 TDB
period 2006.693541953746
5.49
1.95e-05
5.339e-08
d
yr
n .1793995906567272 1.7433e-09 deg/d
Q 3.664409477530391 2.3739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      13870 days (37.97 yr)  
   first obs. used      1981-12-04  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:00:28  

Additional Information
 Earth MOID = 1.56801 au 
 Jupiter MOID = 1.7733 au 
 T_jup = 3.193 
[ 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 14.7   n/a MPO502469  
diameter diameter 6.183 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.4840 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.061   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47085 (1999 AW2)          Discovered 1999-Jan-07 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AW2 = 1981 XK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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