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349 Dembowska (1892 T)
Classification: Main-belt Asteroid          SPK-ID: 2000349
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 83 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09157955299828416 2.7084e-08  
a 2.922531722221944 5.8696e-09 AU
q 2.654887573477553 7.9271e-08 AU
i 8.247171717126173 3.2341e-06 deg
node 32.35968692029449 2.5141e-05 deg
peri 346.5002898132549 3.1125e-05 deg
M 188.2746496416828 1.8295e-05 deg
tp 2457871.000826878713
(2017-Apr-27.50082688)
9.3066e-05 JED
period 1824.892463590533
5.00
5.4977e-06
1.505e-08
d
yr
n .1972718980337552 5.943e-10 deg/d
Q 3.190175870966335 6.4072e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2156  
   data-arc span      44375 days (121.49 yr)  
   first obs. used      1892-12-11  
   last obs. used      2014-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60327  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:11:00  

Additional Information
 Earth MOID = 1.65808 AU 
 T_jup = 3.258 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.93 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
magnitude slope G 0.37   n/a PDS3 (MPC 17258) Fit
diameter diameter 139.77 km 4.3 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
rotation period rot_per 4.701 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Chang, Y.C.; Chang, C.-s. (1963) Acta Astron. Sin. 11, 139-149.]
[Tedesco, E.F. (1979) PhD Dissertation, New. Mex. State Univ. 280pp.]
[Zappala, V.; van Houten-Groeneveld, I.; van Houten, C.J. (1979) Astron. Astrophys. Suppl. Ser. 35, 213-221.]
[Haupt, H. (1980) Mitt. Univ. Graz No. 69.]
[Magnusson, P. (1986) Icarus 68, 1-39.]
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.]
[Lupishko, D.F.; Velichko, F.P. (1987) Kin. Fiz. Neb. Tel 3(1), 57-65; Kinematics and Physics of Celestial Bodies 3(1), 63-71.]
[Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.]
[Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.]
[Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1988) Icarus 76, 19-77.]
[Magnusson, P. (1990) Icarus 85, 229-240.]
[Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.]
[De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.]
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.]
[Majaess, D.J.; Tanner, J.; Savoy, J.; Sampson, B. (2008) Minor Planet Bul. 35, 88-91.]
[Durech, J. (2011) Database of Asteroid Models from Inversion Techniques (DAMIT). http://astro.troja.mff.cuni.cz/projects/aster oids3D/web.php]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
geometric albedo albedo 0.3840   0.025 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
B-V BV .945 mag .028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=25; phase (min.=2.27, mean=13.08, max.=21.36) deg.
U-B UB .540 mag .042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=6; phase (min.=3.18, mean=12.04, max.=20.64) deg.
Tholen spectral type spec_T R   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B R   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)

349 Dembowska (1892 T)          Discovered 1892-Dec-09 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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