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JPL Small-Body Database Browser
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222 Lucia
Classification: Main-belt Asteroid          SPK-ID: 2000222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .131222418295786 3.0366e-08  
a 3.143035588763415 1.1378e-08 au
q 2.73059885801616 9.4971e-08 au
i 2.149038792217705 3.4369e-06 deg
node 80.13649308955472 0.00010302 deg
peri 181.4105213742733 0.00010408 deg
M 236.4490312725143 1.574e-05 deg
tp 2459698.999386347981
(2022-Apr-29.49938635)
8.9644e-05 TDB
period 2035.271610374126
5.57
1.1052e-05
3.026e-08
d
yr
n .1768805687481802 9.605e-10 deg/d
Q 3.55547231951067 1.2871e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3469  
   data-arc span      44131 days (120.82 yr)  
   first obs. used      1899-03-10  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:19:27  

Additional Information
 Earth MOID = 1.7151 au 
 Jupiter MOID = 1.50982 au 
 T_jup = 3.195 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.6   n/a MPO502154 IRAS observations used: 37
diameter diameter 55.350 km 1.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.8371 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Wasserman, L.H.; Millis, R.L.; Franz, O.G.; Bowell, E.; et al. (1979) Astron. J. 84, 259-268.]
[Stephens, R.D. (2009) Minor Planet Bull. 36, 59-62.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2010) Minor Planet Bull. 37, 127-130.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Oszkiewicz, D.; Skiff, B.A.; Moskovitz, N.; Kaniewicz, P.; et al. (2017) Astron. Astrophys. 599, A107.]
[Wang, Y.-B.; Xu, Y.; Fan, C.-B.; Liu, C.-Z. (2018). Astron. Nach. 339, 457-464.]
geometric albedo albedo 0.128   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.688   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=1.05, mean=6.78, max.=12.34) deg.
U-B UB 0.395   0.044 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=1.05, mean=6.78, max.=12.34) deg.
Tholen spectral type spec_T BU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

222 Lucia          Discovered 1882-Feb-09 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A899 EC = A919 AB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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