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109550 (2001 QA258)
Classification: Main-belt Asteroid          SPK-ID: 2109550
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1831615446253132 3.5703e-08  
a 2.698254798151833 1.1414e-08 au
q 2.20403828152968 9.5625e-08 au
i 13.24024692954552 3.7062e-06 deg
node 166.4495957714301 1.7465e-05 deg
peri 251.5406830086781 2.2202e-05 deg
M 46.340186735057 1.0695e-05 deg
tp 2458792.109391577798
(2019-Nov-04.60939158)
4.8419e-05 TDB
period 1618.910589655404
4.43
1.0272e-05
2.812e-08
d
yr
n .2223717617886657 1.411e-09 deg/d
Q 3.192471314773985 1.3504e-08 au
  Orbit Determination Parameters
   # obs. used (total)      890  
   data-arc span      7622 days (20.87 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49851  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:27:56  

Additional Information
 Earth MOID = 1.25545 au 
 Jupiter MOID = 2.335 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 15.1   n/a MPO502756  
diameter diameter 3.035 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.210   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109550 (2001 QA258)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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