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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456895.5 (2014-Aug-26.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1599879217665527 3.9153e-08  
q 2.344337693935364 1.1404e-07 au
tp 2457134.813844571821
(2015-Apr-22.31384457)
5.5464e-05 TDB
node 332.4739953823729 5.5595e-05 deg
peri 12.36189193574364 5.6888e-05 deg
i 3.853777840664903 4.1935e-06 deg
  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
 Jupiter MOID = 2.17554 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.532963065331599E-15 -4.444443641247034E-15 -2.537221629260963E-14 5.188250493686165E-16 -3.437828614297576E-14 -1.227764800388125E-15
q -4.444443641247034E-15 1.300541013783941E-14 -1.463907195909579E-14 -2.660726067896887E-15 7.858336207630223E-14 3.820435697116748E-15
tp -2.537221629260963E-14 -1.463907195909579E-14 3.076269413559561E-9 4.15592806486462E-12 6.825926560708411E-10 -1.544440289376213E-12
node 5.188250493686165E-16 -2.660726067896887E-15 4.15592806486462E-12 3.090796306391069E-9 -3.08246107305777E-9 -2.120323706475615E-12
peri -3.437828614297576E-14 7.858336207630223E-14 6.825926560708411E-10 -3.08246107305777E-9 3.236226728245298E-9 1.785780712099367E-12
i -1.227764800388125E-15 3.820435697116748E-15 -1.544440289376213E-12 -2.120323706475615E-12 1.785780712099367E-12 1.758523318191933E-11

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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