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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2007799712110989 2.378e-08  
a 2.771341896982836 1.1962e-08 au
q 2.21491195069051 6.9357e-08 au
i 14.86934915808119 6.6921e-07 deg
node 175.1355145757018 3.7169e-06 deg
peri 131.5283217898288 4.1257e-06 deg
M 319.3173483572432 4.1197e-06 deg
tp 2459390.932180054162
(2021-Jun-25.43218005)
1.9998e-05 TDB
period 1685.130689648738
4.61
1.091e-05
2.987e-08
d
yr
n .2136332821017231 1.3831e-09 deg/d
Q 3.327771843275162 1.4363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2010  
   data-arc span      25022 days (68.51 yr)  
   first obs. used      1952-09-15  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49415  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:10:35  

Additional Information
 Earth MOID = 1.22889 au 
 Jupiter MOID = 2.14943 au 
 T_jup = 3.260 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457117.5 (2015-Apr-05.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1992579014673112 2.3784e-08  
q 2.221585381444929 6.9348e-08 au
tp 2457704.253096846217
(2016-Nov-11.75309685)
1.6077e-05 TDB
node 175.1579360875088 3.718e-06 deg
peri 131.2178588434334 4.1363e-06 deg
i 14.85955721430525 6.6869e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2010  
   data-arc span      25022 days (68.51 yr)  
   first obs. used      1952-09-15  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49415  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:10:35  

Additional Information
 Jupiter MOID = 2.14943 au 
 T_jup = 3.260 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.656856590232679E-16 -1.634709354487438E-15 -2.121777509902477E-13 4.760586018664729E-15 -4.671119019945449E-15 -1.826623521812498E-15
q -1.634709354487438E-15 4.80916614330714E-15 5.95934292162463E-13 -1.376277202754875E-14 5.078705011161579E-15 5.397540314620572E-15
tp -2.121777509902477E-13 5.95934292162463E-13 2.584707656773659E-10 8.681717009362581E-12 3.107675714589373E-11 3.248296228800128E-12
node 4.760586018664729E-15 -1.376277202754875E-14 8.681717009362581E-12 1.382371988483439E-11 -1.057947447070145E-11 1.242004589080138E-12
peri -4.671119019945449E-15 5.078705011161579E-15 3.107675714589373E-11 -1.057947447070145E-11 1.710870112233472E-11 -6.049716318794555E-13
i -1.826623521812498E-15 5.397540314620572E-15 3.248296228800128E-12 1.242004589080138E-12 -6.049716318794555E-13 4.471413486901181E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.22   n/a E2021B10  
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. 2020-October); 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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