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46309 (2001 QA2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2046309
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06520032292747552 3.4539e-08  
a 3.240021555528055 2.1519e-08 au
q 3.028771103815644 1.1166e-07 au
i 11.68690926422424 4.6842e-06 deg
node 183.1951642974985 1.8738e-05 deg
peri 80.19012716608724 4.0249e-05 deg
M 90.87792022270085 3.6498e-05 deg
tp 2458062.755279945342
(2017-Nov-05.25527995)
0.0002153 TDB
period 2130.199488998865
5.83
2.1222e-05
5.81e-08
d
yr
n .1689982566699376 1.6836e-09 deg/d
Q 3.451272007240466 2.2922e-08 au
  Orbit Determination Parameters
   # obs. used (total)      992  
   data-arc span      10583 days (28.97 yr)  
   first obs. used      1990-11-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57825  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:26:34  

Additional Information
 Earth MOID = 2.04323 au 
 Jupiter MOID = 1.63318 au 
 T_jup = 3.148 
[ 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 13.9   n/a MPO412494  
diameter diameter 8.963 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46309 (2001 QA2)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20020822/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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