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129252 (2005 QW49)
Classification: Main-belt Asteroid          SPK-ID: 2129252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1993952007690382 6.132e-08  
a 3.106510822760225 2.9879e-08 au
q 2.48708747356476 1.8856e-07 au
i 7.661168659576766 7.3086e-06 deg
node 119.8568206054084 4.6722e-05 deg
peri 269.8789407607255 5.0554e-05 deg
M 225.0367678605466 2.2808e-05 deg
tp 2459750.257299914417
(2022-Jun-19.75729991)
0.00013365 TDB
period 1999.897480895371
5.48
2.8853e-05
7.9e-08
d
yr
n .1800092271923984 2.597e-09 deg/d
Q 3.72593417195569 3.5837e-08 au
  Orbit Determination Parameters
   # obs. used (total)      385  
   data-arc span      8075 days (22.11 yr)  
   first obs. used      1997-03-02  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5727  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:33:04  

Additional Information
 Earth MOID = 1.5071 au 
 Jupiter MOID = 1.79186 au 
 T_jup = 3.176 
[ 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 15.3   n/a MPO469347  
diameter diameter 5.301 km 0.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129252 (2005 QW49)          Discovered 2005-Aug-26 by NEAT at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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