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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271641396391179 5.4907e-08  
a 2.580488196531436 1.5323e-08 AU
q 2.252342635170617 1.4214e-07 AU
i 14.72580496695153 7.1762e-06 deg
node 151.6133308339495 1.9282e-05 deg
peri 55.08784883145376 3.4508e-05 deg
M 26.94203427056332 2.6941e-05 deg
tp 2456887.187159710064
(2014-Aug-17.68715971)
0.00011315 JED
period 1514.088434997904
4.15
1.3486e-05
3.692e-08
d
yr
n .2377668250272966 2.1179e-09 deg/d
Q 2.908633757892255 1.7272e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1291  
   data-arc span      13526 days (37.03 yr)  
   first obs. used      1978-08-02  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45269  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:33:13  

Additional Information
 Earth MOID = 1.28562 AU 
 T_jup = 3.368 
[ 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 12.8 mag n/a MPO250326  
rotation period rot_per 5.2598 h n/a LCDB (Rev. 2015-July); 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) arXiv:1506.08493.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]

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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