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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09335162401363671 6.7286e-08  
a 2.975453554238392 3.8172e-08 AU
q 2.69769013277309 2.2216e-07 AU
i 9.015665863704466 7.842e-06 deg
node 243.9766306157926 4.666e-05 deg
peri 57.96796703919538 6.8302e-05 deg
M 278.1275438371924 4.883e-05 deg
tp 2457426.847291826328
(2016-Feb-08.34729183)
0.00025387 JED
period 1874.684506255257
5.13
3.6076e-05
9.877e-08
d
yr
n .1920323119963859 3.6954e-09 deg/d
Q 3.253216975703694 4.1736e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      10435 days (28.57 yr)  
   first obs. used      1986-11-25  
   last obs. used      2015-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5387  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:43:59  

Additional Information
 Earth MOID = 1.69657 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-July); 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., in press.]

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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