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JPL Small-Body Database Browser
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71168 (1999 XQ204)
Classification: Main-belt Asteroid          SPK-ID: 2071168
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1540552459205345 4.6574e-08  
a 2.732468775312669 1.6967e-08 au
q 2.311517626161694 1.2616e-07 au
i 12.98694768821071 5.8638e-06 deg
node 323.7883805256706 2.2061e-05 deg
peri 132.4832232500666 2.9884e-05 deg
M 106.0714957300179 1.8101e-05 deg
tp 2458114.397974375627
(2017-Dec-26.89797438)
8.2524e-05 TDB
period 1649.799769677903
4.52
1.5367e-05
4.207e-08
d
yr
n .2182082981320116 2.0325e-09 deg/d
Q 3.153419924463643 1.9581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      7569 days (20.72 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53082  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:36:32  

Additional Information
 Earth MOID = 1.34902 au 
 Jupiter MOID = 2.02702 au 
 T_jup = 3.300 
[ 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 14.6   n/a MPO299431  
diameter diameter 3.644 km 0.582 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.160   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71168 (1999 XQ204)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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