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146 Lucina (A875 LC)
Classification: Main-belt Asteroid          SPK-ID: 2000146
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 102 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06682038645440952 1.9093e-08  
a 2.717877085922355 5.0211e-09 au
q 2.536267488705439 5.0262e-08 au
i 13.10052448898401 3.814e-07 deg
node 83.94809067610149 4.6837e-06 deg
peri 145.7219270177179 2.0434e-05 deg
M 191.293106312072 2.208e-05 deg
tp 2459967.461340504533
(2023-Jan-22.96134050)
0.0001011 TDB
period 1636.602254632046
4.48
4.5353e-06
1.242e-08
d
yr
n .2199679237768973 6.0956e-10 deg/d
Q 2.89948668313927 5.3566e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3008  
   data-arc span      49467 days (135.43 yr)  
   first obs. used      1885-10-05  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42666  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:21:48  

Additional Information
 Earth MOID = 1.53175 au 
 Jupiter MOID = 2.14235 au 
 T_jup = 3.319 
[ 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 8.37   n/a E2021B10 IRAS observations used: 26
magnitude slope G 0.11   n/a PDS3 (MPC 17257) Fit
diameter diameter 160.310 km 1.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 18.557 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
[Viikinkoski, M.; Hanus, J.; Kaasalainen, M.; Marchis, F.; Durech, J. (2017) Astron. Astrophys. 607, A117.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.036   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.703   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.85, mean=13.75, max.=21.88) deg.
U-B UB 0.405   0.027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.85, mean=13.75, max.=21.88) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   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)

146 Lucina (A875 LC)          Discovered 1875-Jun-08 by Borrelly, A. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A875 LC = 1950 CY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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