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JPL Small-Body Database Browser
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243948 (2001 QD117)
Classification: Main-belt Asteroid          SPK-ID: 2243948
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1612056907796869 6.327e-08  
a 2.768530956229668 1.6892e-08 au
q 2.322228010985718 1.8092e-07 au
i 11.88771736791862 6.3014e-06 deg
node 328.7446869726047 2.0674e-05 deg
peri 345.5280620632047 2.524e-05 deg
M 333.0409822023904 1.3573e-05 deg
tp 2458726.501021913458
(2019-Aug-31.00102191)
6.3623e-05 TDB
period 1682.567526360947
4.61
1.5399e-05
4.216e-08
d
yr
n .2139587234151649 1.9582e-09 deg/d
Q 3.214833901473619 1.9615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      573  
   data-arc span      6650 days (18.21 yr)  
   first obs. used      2001-08-17  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:17:38  

Additional Information
 Earth MOID = 1.30995 au 
 Jupiter MOID = 2.10474 au 
 T_jup = 3.288 
[ 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 15.3   n/a MPO437138  
diameter diameter 2.764 km 0.691 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243948 (2001 QD117)          Discovered 2001-Aug-17 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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