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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1772281170173106 4.166e-08  
a 3.114492397364264 2.0058e-08 au
q 2.562516774314666 1.357e-07 au
i 1.431718123827965 4.3737e-06 deg
node 54.73581613989059 0.00017796 deg
peri 337.2231838795914 0.00017833 deg
M 22.21508148236845 1.0932e-05 deg
tp 2458876.613281587290
(2020-Jan-28.11328159)
6.0883e-05 TDB
period 2007.609950203104
5.50
1.9394e-05
5.31e-08
d
yr
n .1793177006138966 1.7323e-09 deg/d
Q 3.666468020413861 2.3613e-08 au
  Orbit Determination Parameters
   # obs. used (total)      842  
   data-arc span      13940 days (38.17 yr)  
   first obs. used      1981-12-04  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53329  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:40:50  

Additional Information
 Earth MOID = 1.56852 au 
 Jupiter MOID = 1.77348 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-August); 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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