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34774 (2001 QX261)
Classification: Main-belt Asteroid          SPK-ID: 2034774
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0552886155704248 5.6596e-08  
a 3.150407026571179 2.3725e-08 au
q 2.97622538358872 1.8277e-07 au
i 9.543261361522266 4.6756e-06 deg
node 290.7757670475079 2.8624e-05 deg
peri 233.9749751762367 4.9898e-05 deg
M 336.2203834640534 4.1272e-05 deg
tp 2459135.412060185640
(2020-Oct-12.91206019)
0.00023435 TDB
period 2042.435864910261
5.59
2.3072e-05
6.317e-08
d
yr
n .1762601245820844 1.9911e-09 deg/d
Q 3.324588669553639 2.5037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      8121 days (22.23 yr)  
   first obs. used      1998-01-24  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48067  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 07:52:01  

Additional Information
 Earth MOID = 1.99747 au 
 Jupiter MOID = 1.76871 au 
 T_jup = 3.184 
[ 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 13.6   n/a MPO337545  
diameter diameter 13.437 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34774 (2001 QX261)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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