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JPL Small-Body Database Browser
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109529 (2001 QE248)
Classification: Main-belt Asteroid          SPK-ID: 2109529
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1874145875065244 7.5979e-08  
a 2.518133441329054 9.5993e-09 au
q 2.046198501135985 1.91e-07 au
i 3.265824571257167 4.9512e-06 deg
node 151.0069593355922 9.7262e-05 deg
peri 233.2686558421236 9.778e-05 deg
M 139.8107103451426 9.4318e-06 deg
tp 2458033.667844337577
(2017-Oct-07.16784434)
3.7357e-05 TDB
period 1459.541801445126
4.00
8.3458e-06
2.285e-08
d
yr
n .2466527506396567 1.4104e-09 deg/d
Q 2.990068381522123 1.1398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      809  
   data-arc span      9311 days (25.49 yr)  
   first obs. used      1993-10-09  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53793  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:00:49  

Additional Information
 Earth MOID = 1.051 au 
 Jupiter MOID = 2.46312 au 
 T_jup = 3.431 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO280508  
diameter diameter 1.894 km 0.467 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.674 h n/a LCDB (Rev. 2019-January); 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 0.283   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109529 (2001 QE248)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2001 QE248 = 1993 TX39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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