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35 Leukothea
Classification: Main-belt Asteroid          SPK-ID: 2000035
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2269027583572872 3.091e-08  
a 2.991917070966137 8.8716e-09 AU
q 2.313042834787665 9.3734e-08 AU
i 7.934565308461383 4.146e-06 deg
node 353.7693086041054 2.8393e-05 deg
peri 213.4598126989464 3.0084e-05 deg
M 270.6854797633346 1.1107e-05 deg
tp 2457469.467042957187
(2016-Mar-21.96704296)
5.9527e-05 JED
period 1890.265267251358
5.18
8.4075e-06
2.302e-08
d
yr
n .1904494603148887 8.4707e-10 deg/d
Q 3.670791307144609 1.0885e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1857  
   data-arc span      56585 days (154.92 yr)  
   first obs. used      1860-03-11  
   last obs. used      2015-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57285  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:25:20  

Additional Information
 Earth MOID = 1.31551 AU 
 T_jup = 3.202 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.50 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
diameter diameter 103.11 km 2.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
rotation period rot_per 31.900 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1990) Icarus 86, 402-447.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2008) Minor Planet Bul. 35, 51-52.]
[Pilcher, F.; Jardine, D. (2009) Minor Planet Bul. 36, 52-54.]
[Pilcher, F. (2010) Minor Planet Bul. 37, 119-122.]
geometric albedo albedo 0.0662   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
B-V BV .703 mag .024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=3.82, mean=12.65, max.=21.48) deg.
U-B UB .335 mag .045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=3.82, mean=12.65, max.=21.48) 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 C   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)

35 Leukothea          Discovered 1855-Apr-19 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1948 DC = 1950 RS1 = 1976 WH 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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