Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


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

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .131243903963369 3.0782e-08  
a 3.143280794471841 1.1399e-08 au
q 2.730744351752276 9.6254e-08 au
i 2.149276427505196 3.4757e-06 deg
node 80.13895145427192 0.00010499 deg
peri 181.2787832460891 0.00010606 deg
M 165.8668814898753 1.5815e-05 deg
tp 2457662.656497228316
(2016-Oct-01.15649723)
8.8964e-05 TDB
period 2035.509789327142
5.57
1.1072e-05
3.031e-08
d
yr
n .176859871609363 9.6204e-10 deg/d
Q 3.555817237191406 1.2895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3415  
   data-arc span      44100 days (120.74 yr)  
   first obs. used      1899-03-10  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4669  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:39:19  

Additional Information
 Earth MOID = 1.7149 au 
 Jupiter MOID = 1.50878 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-January); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-17 22:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin