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46322 (2001 QD99)
Classification: Main-belt Asteroid          SPK-ID: 2046322
[ 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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .156952576433657 3.836e-08  
a 2.791311383844977 1.3498e-08 au
q 2.353207870521911 1.1104e-07 au
i 3.848840776732514 4.1279e-06 deg
node 332.2514423929359 5.5665e-05 deg
peri 12.4634692004409 5.7025e-05 deg
M 34.33347363887214 1.2041e-05 deg
tp 2458838.047611515635
(2019-Dec-20.54761152)		 5.6852e-05 TDB
period 1703.377306633996
4.66		 1.2355e-05
3.383e-08		 d
yr
n .2113448374578781 1.533e-09 deg/d
Q 3.229414897168043 1.5616e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1594  
   data-arc span      15818 days (43.31 yr)  
   first obs. used      1977-07-21  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5003  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:47:50  

Additional Information
 Earth MOID = 1.34583 au 
 Jupiter MOID = 2.17554 au 
 T_jup = 3.308 
[ 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 14.1   n/a MPO502464  
diameter diameter 6.237 km 0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.135   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46322 (2001 QD99)          Discovered 2001-Aug-22 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 QD99 = 1996 RX2 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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