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29173 (1990 QW4)
Classification: Main-belt Asteroid          SPK-ID: 2029173
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1507524047533915 5.7814e-08  
a 2.304226664358002 1.7542e-08 au
q 1.956858953609147 1.3501e-07 au
i 8.670867104726215 6.7478e-06 deg
node 123.1906190949824 5.6077e-05 deg
peri 306.98809020 6.4445e-05 deg
M 19.66933764304183 3.4549e-05 deg
tp 2457330.697101206553
(2015-Nov-04.19710121)
0.00012226 JED
period 1277.574467512921
3.50
1.459e-05
3.995e-08
d
yr
n .2817839657525553 3.2179e-09 deg/d
Q 2.651594375106856 2.0187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      706  
   data-arc span      9190 days (25.16 yr)  
   first obs. used      1990-08-24  
   last obs. used      2015-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54439  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 17:02:30  

Additional Information
 Earth MOID = .984669 au 
 Jupiter MOID = 2.62291 au 
 T_jup = 3.559 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO266102  

29173 (1990 QW4)          Discovered 1990-Aug-24 by Holt, H. E. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QW4 = 1999 CK10 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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