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JPL Small-Body Database Browser
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34742 (2001 QD79)
Classification: Main-belt Asteroid          SPK-ID: 2034742
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1543161555791793 4.666e-08  
a 2.631735710642402 1.1381e-08 au
q 2.225616373275627 1.2024e-07 au
i 10.59625524201505 6.3646e-06 deg
node 225.4251292334927 2.0331e-05 deg
peri 221.4608459850685 2.8244e-05 deg
M 105.4186055055865 1.7933e-05 deg
tp 2458543.857211541367
(2019-Mar-01.35721154)
7.7399e-05 TDB
period 1559.415466147447
4.27
1.0116e-05
2.77e-08
d
yr
n .2308557326864175 1.4975e-09 deg/d
Q 3.037855048009177 1.3137e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1151  
   data-arc span      11500 days (31.49 yr)  
   first obs. used      1988-11-02  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51823  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 07:51:40  

Additional Information
 Earth MOID = 1.25305 au 
 Jupiter MOID = 2.26325 au 
 T_jup = 3.359 
[ 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 14.7   n/a MPO468162  
diameter diameter 7.159 km 2.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 8.81 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:
[Stephens, R.D.; French, L.M.; James, D.; Rohl, D.; Warner, B.D. (2017) Minor Planet Bull. 44, 42-49.]
geometric albedo albedo 0.055   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

34742 (2001 QD79)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 QD79 = 1988 VK9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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