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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871080573388058 5.9541e-08  
a 2.518978595870105 9.2163e-09 au
q 2.047657404318817 1.5109e-07 au
i 3.265684754725502 4.2679e-06 deg
node 150.9946725541156 9.259e-05 deg
peri 233.1670337409575 9.2935e-05 deg
M 238.6014707604977 9.1873e-06 deg
tp 2459492.931773246649
(2021-Oct-05.43177325)
3.8604e-05 TDB
period 1460.276656392221
4.00
8.0141e-06
2.194e-08
d
yr
n .2465286275885699 1.353e-09 deg/d
Q 2.990299787421392 1.0941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      854  
   data-arc span      9742 days (26.67 yr)  
   first obs. used      1993-10-09  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52736  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:33:16  

Additional Information
 Earth MOID = 1.05316 au 
 Jupiter MOID = 2.46573 au 
 T_jup = 3.430 
[ 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-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 0.283   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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