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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1570417067058559 3.5568e-08  
a 2.792001499338494 1.2581e-08 au
q 2.353540818757068 1.019e-07 au
i 3.848817332287958 3.8862e-06 deg
node 332.248769699347 5.5268e-05 deg
peri 12.54255323168911 5.6629e-05 deg
M 76.51895741911393 1.2055e-05 deg
tp 2458838.308344070936
(2019-Dec-20.80834407)		 5.679e-05 TDB
period 1704.009052557905
4.67		 1.1517e-05
3.153e-08		 d
yr
n .2112664832734313 1.428e-09 deg/d
Q 3.230462179919919 1.4557e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      15912 days (43.56 yr)  
   first obs. used      1977-07-21  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4927  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:47:54  

Additional Information
 Earth MOID = 1.34437 au 
 Jupiter MOID = 2.17516 au 
 T_jup = 3.307 
[ 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 14.11   n/a E2021B10  
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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