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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569525719327955 3.9137e-08  
a 2.791311385232521 1.3745e-08 au
q 2.353207884254982 1.1357e-07 au
i 3.848840760816088 4.1901e-06 deg
node 332.251440882514 5.568e-05 deg
peri 12.46347093339342 5.704e-05 deg
M 34.33347303827554 1.2051e-05 deg
tp 2458838.047614236289
(2019-Dec-20.54761424)		 5.6891e-05 TDB
period 1703.377307904104
4.66		 1.2582e-05
3.445e-08		 d
yr
n .2113448373002907 1.5611e-09 deg/d
Q 3.229414886210059 1.5903e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1516  
   data-arc span      15509 days (42.46 yr)  
   first obs. used      1977-07-21  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50787  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:25:51  

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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