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11478 (1985 CD)
Classification: Main-belt Asteroid          SPK-ID: 2011478
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .127331147249384 5.2819e-08  
a 2.581099345365827 1.5004e-08 au
q 2.252445004555762 1.3608e-07 au
i 14.72613625808406 7.1032e-06 deg
node 151.6114335052634 1.8308e-05 deg
peri 55.1788574786911 3.3867e-05 deg
M 121.9259812532678 2.6993e-05 deg
tp 2456887.521378039921
(2014-Aug-18.02137804)
0.00011283 JED
period 1514.626349588464
4.15
1.3207e-05
3.616e-08
d
yr
n .2376823829176186 2.0725e-09 deg/d
Q 2.909753686175892 1.6915e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1329  
   data-arc span      13625 days (37.30 yr)  
   first obs. used      1978-08-02  
   last obs. used      2015-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45926  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 16:08:58  

Additional Information
 Earth MOID = 1.28441 au 
 Jupiter MOID = 2.12712 au 
 T_jup = 3.367 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO344394  
rotation period rot_per 5.2598 h n/a LCDB (Rev. 2015-December); 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.]

11478 (1985 CD)          Discovered 1985-Feb-14 by Suzuki, K., Urata, T. at Toyota
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1985 CD = 1978 PP4 = 1998 KD54 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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