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5625 (1991 AO2)
Classification: Main-belt Asteroid          SPK-ID: 2005625
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955512931860021 6.9553e-08  
a 2.672107804598661 1.9949e-08 AU
q 2.149573667876984 1.856e-07 AU
i 11.97539989206547 8.0083e-06 deg
node 175.0289959636169 3.2756e-05 deg
peri 217.0841319580378 3.7761e-05 deg
M 159.6875746612483 2.0017e-05 deg
tp 2456092.801925088546
(2012-Jun-14.30192509)
8.5549e-05 JED
period 1595.436010025077
4.37
1.7866e-05
4.891e-08
d
yr
n .2256436470895135 2.5268e-09 deg/d
Q 3.194641941320338 2.3849e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      884  
   data-arc span      21301 days (58.32 yr)  
   first obs. used      1955-12-13  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49464  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:48:48  

Additional Information
 Earth MOID = 1.16498 AU 
 T_jup = 3.322 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO256905  

5625 (1991 AO2)          Discovered 1991-Jan-07 by McNaught, R. H. at Siding Spring (413)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 AO2 = 1955 XS = 1971 KD = 1972 TM = 1985 QC2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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