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JPL Small-Body Database Browser
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3274 Maillen (1981 QO2)
Classification: Main-belt Asteroid          SPK-ID: 2003274
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1255721114434132 3.1852e-08  
a 3.144770688964279 1.6147e-08 au
q 2.749875193545678 1.0305e-07 au
i 1.235703821509062 4.6305e-06 deg
node 27.82012293939162 0.0001526 deg
peri 233.8589918261657 0.00015378 deg
M 33.86248414552654 1.9171e-05 deg
tp 2458808.898804187887
(2019-Nov-21.39880419)
0.00010843 TDB
period 2036.957188253802
5.58
1.5689e-05
4.295e-08
d
yr
n .1767342004416955 1.3612e-09 deg/d
Q 3.539666184382881 1.8175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2235  
   data-arc span      24316 days (66.57 yr)  
   first obs. used      1953-10-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:52:01  

Additional Information
 Earth MOID = 1.73461 au 
 Jupiter MOID = 1.52827 au 
 T_jup = 3.197 
[ 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 12.8   n/a MPO473810  
diameter diameter 14.548 km 1.823 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 11.369 h n/a LCDB (Rev. 2019-August); 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.]
geometric albedo albedo 0.076   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3274 Maillen (1981 QO2)          Discovered 1981-Aug-23 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 QO2 = 1982 UK6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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