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29170 (1990 OA3)
Classification: Main-belt Asteroid          SPK-ID: 2029170
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09358823040803249 6.7248e-08  
a 2.976365431069422 3.8159e-08 au
q 2.697812657327995 2.2215e-07 au
i 9.014440662356838 7.8395e-06 deg
node 243.9739850854008 4.6642e-05 deg
peri 57.85814293347734 6.8203e-05 deg
M 355.0413298942373 4.8616e-05 deg
tp 2457426.333932468034
(2016-Feb-07.83393247)
0.00025326 JED
period 1875.546364272993
5.13
3.6068e-05
9.875e-08
d
yr
n .1919440685965365 3.6913e-09 deg/d
Q 3.25491820481085 4.173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      10489 days (28.72 yr)  
   first obs. used      1986-11-25  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53598  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:14:32  

Additional Information
 Earth MOID = 1.69371 au 
 Jupiter MOID = 1.91962 au 
 T_jup = 3.236 
[ 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 13.2 mag n/a MPO309380  
rotation period rot_per 8.0894 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

29170 (1990 OA3)          Discovered 1990-Jul-27 by Holt, H. E. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 OA3 = 1986 WG1 = 2000 LQ18 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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