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15979 (1998 QW34)
Classification: Main-belt Asteroid          SPK-ID: 2015979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2006632081440849 3.0873e-08  
a 2.771247747386756 1.2442e-08 au
q 2.215160283834061 8.8216e-08 au
i 14.86919143331982 4.3179e-06 deg
node 175.1362414279208 1.4469e-05 deg
peri 131.5205766443299 1.8076e-05 deg
M 276.5838250308537 1.2171e-05 deg
tp 2459390.944426038643
(2021-Jun-25.44442604)
5.7945e-05 TDB
period 1685.044818057183
4.61
1.1348e-05
3.107e-08
d
yr
n .2136441690702752 1.4388e-09 deg/d
Q 3.327335210939451 1.4938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1909  
   data-arc span      24746 days (67.75 yr)  
   first obs. used      1952-09-15  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49663  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:54:19  

Additional Information
 Earth MOID = 1.23103 au 
 Jupiter MOID = 2.14976 au 
 T_jup = 3.260 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO384892  
diameter diameter 10.989 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.420 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.092   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15979 (1998 QW34)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QW34 = 1992 EO34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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