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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05557757806524509 5.9991e-08  
a 3.150747700094563 2.7713e-08 au
q 2.975636773828666 1.8924e-07 au
i 9.542339523870664 4.6934e-06 deg
node 290.7773736262801 3.5883e-05 deg
peri 234.0240071371425 5.812e-05 deg
M 265.7028812464162 4.7621e-05 deg
tp 2459135.575161272801
(2020-Oct-13.07516127)
0.00027273 TDB
period 2042.767166211933
5.59
2.6952e-05
7.379e-08
d
yr
n .1762315382558145 2.3251e-09 deg/d
Q 3.325858626360459 2.9254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1998-01-24  
   last obs. used      2019-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50744  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:43:39  

Additional Information
 Earth MOID = 1.99736 au 
 Jupiter MOID = 1.76906 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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