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29489 (1997 WQ)
Classification: Main-belt Asteroid          SPK-ID: 2029489
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1951236808342688 1.6159e-08  
a 2.640908467527153 9.5222e-09 au
q 2.125604686596867 4.3433e-08 au
i 12.7146801609283 4.8521e-07 deg
node 54.16744102551652 1.9146e-06 deg
peri 258.3858997922342 4.9209e-06 deg
M 272.9790637064099 7.0921e-06 deg
tp 2459775.421895747773
(2022-Jul-14.92189575)
3.2128e-05 TDB
period 1567.57543965022
4.29
8.4782e-06
2.321e-08
d
yr
n .2296540191267149 1.2421e-09 deg/d
Q 3.156212248457438 1.138e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2722  
   data-arc span      15288 days (41.86 yr)  
   first obs. used      1979-08-15  
   last obs. used      2021-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45121  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 06:15:39  

Additional Information
 Earth MOID = 1.15446 au 
 Jupiter MOID = 2.22507 au 
 T_jup = 3.333 
[ 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 13.43   n/a MPCxxxxx  
rotation period rot_per 3.16796 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

29489 (1997 WQ)          Discovered 1997-Nov-18 by Kobayashi, T. at Oizumi
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WQ = 1999 CU123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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