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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282544180634119 3.2964e-08  
a 2.579643437318178 1.0849e-08 au
q 2.248792769453836 8.6737e-08 au
i 14.73150042270684 5.0951e-06 deg
node 151.5488446982167 1.3493e-05 deg
peri 55.05041354848398 2.471e-05 deg
M 142.4630573277469 2.0662e-05 deg
tp 2458401.622898033685
(2018-Oct-10.12289803)
8.5811e-05 TDB
period 1513.345008537051
4.14
9.5471e-06
2.614e-08
d
yr
n .2378836273084956 1.5007e-09 deg/d
Q 2.910494105182521 1.2241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2055  
   data-arc span      15080 days (41.29 yr)  
   first obs. used      1978-08-02  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44107  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:16:30  

Additional Information
 Earth MOID = 1.28092 au 
 Jupiter MOID = 2.12372 au 
 T_jup = 3.368 
[ 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 13.0   n/a MPO492882  
diameter diameter 5.558 km 0.663 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.260 h n/a LCDB (Rev. 2019-August); 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 0.152   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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