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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871080713636087 5.4781e-08  
a 2.51897859640911 9.1748e-09 au
q 2.047657369428792 1.395e-07 au
i 3.265686311076356 3.8727e-06 deg
node 150.9946953274643 8.8975e-05 deg
peri 233.1670092088758 8.9288e-05 deg
M 238.6014715754267 9.0962e-06 deg
tp 2459492.931770099087
(2021-Oct-05.43177010)
3.8282e-05 TDB
period 1460.276656860922
4.00
7.978e-06
2.184e-08
d
yr
n .2465286275094424 1.3469e-09 deg/d
Q 2.990299823389429 1.0891e-08 au
  Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      9769 days (26.75 yr)  
   first obs. used      1993-10-09  
   last obs. used      2020-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5248  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:11:29  

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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