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507 Laodica (A903 DC)
Classification: Main-belt Asteroid          SPK-ID: 2000507
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 82 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1006685749404127 3.8607e-08  
a 3.154810022224421 1.4292e-08 au
q 2.837219793079357 1.2307e-07 au
i 9.498372739106694 4.208e-06 deg
node 293.4301920503687 2.7147e-05 deg
peri 100.5042066686637 3.4902e-05 deg
M 75.83188346625239 2.1508e-05 deg
tp 2458569.370652608968
(2019-Mar-26.87065261)
0.00012237 TDB
period 2046.719110304616
5.60
1.3908e-05
3.808e-08
d
yr
n .1758912584474871 1.1952e-09 deg/d
Q 3.472400251369486 1.5731e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2695  
   data-arc span      41676 days (114.10 yr)  
   first obs. used      1906-09-19  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41668  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:28:51  

Additional Information
 Earth MOID = 1.86402 au 
 Jupiter MOID = 1.95478 au 
 T_jup = 3.177 
[ 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 9.2   n/a MPO425802  
diameter diameter 45.170 km 0.284 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.706 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Robinson, L. (2002) Minor Planet Bull. 29, 13.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Black, S.; Linville, D.; Michalik, D.; Wolf, M.; Ditteon, R. (2016) Minor Planet Bull. 43, 287-289.]
[Mansego, E.A.; Rodriguez, P.B.; de Haro, J.L.; Chiner, O.R.; et al. (2016) Minor Planet Bull. 43, 332-336.]
[Hess, K.; Bruner, M.; Ditteon, R. (2017) Minor Planet Bull. 44, 3-5.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.198   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

507 Laodica (A903 DC)          Discovered 1903-Feb-19 by Dugan, R. S. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A903 DC = 1953 GK1 = 1958 AK = 1974 YC = A896 YB = A912 VP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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