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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1280607736965234 1.7603e-08  
a 2.580136206553971 9.608e-09 au
q 2.249721967700256 4.5791e-08 au
i 14.73133238871583 6.8408e-07 deg
node 151.5463825368399 2.3355e-06 deg
peri 54.94318306007879 7.3293e-06 deg
M 236.788571276739 8.1065e-06 deg
tp 2459914.596751701693
(2022-Dec-01.09675170)
3.5976e-05 TDB
period 1513.77865304631
4.14
8.4556e-06
2.315e-08
d
yr
n .2378154819897482 1.3284e-09 deg/d
Q 2.910550445407685 1.0838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2647  
   data-arc span      15571 days (42.63 yr)  
   first obs. used      1978-08-02  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:34:37  

Additional Information
 Earth MOID = 1.28248 au 
 Jupiter MOID = 2.12149 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 12.99   n/a E2021B10  
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. 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 0.152   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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