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15409 (1997 WQ31)
Classification: Main-belt Asteroid          SPK-ID: 2015409
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226042014093335 5.0841e-08  
a 2.943988397811331 1.2998e-08 au
q 2.58304305133933 1.509e-07 au
i 3.1349220663795 3.5314e-06 deg
node 79.78790187953093 7.9828e-05 deg
peri 293.0701044442725 8.0685e-05 deg
M 273.7982010210627 1.3554e-05 deg
tp 2459838.290524255336
(2022-Sep-15.79052426)
7.0515e-05 TDB
period 1845.026329099955
5.05
1.2219e-05
3.345e-08
d
yr
n .1951191667685393 1.2922e-09 deg/d
Q 3.304933744283333 1.4592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1812  
   data-arc span      10455 days (28.62 yr)  
   first obs. used      1992-11-18  
   last obs. used      2021-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50381  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:56:35  

Additional Information
 Earth MOID = 1.58473 au 
 Jupiter MOID = 2.16317 au 
 T_jup = 3.258 
[ 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 13.77   n/a E2021B10  
diameter diameter 6.705 km 0.404 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.723 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.143   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15409 (1997 WQ31)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WQ31 = 1999 CH33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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