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423 Diotima (1896 DB)
Classification: Main-belt Asteroid          SPK-ID: 2000423
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 80 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03864031288455213 2.7123e-08  
a 3.066497203256853 8.2815e-09 AU
q 2.948006791863404 8.4007e-08 AU
i 11.23201846995279 3.3343e-06 deg
node 69.48698657096658 1.697e-05 deg
peri 200.9753685285503 4.386e-05 deg
M 126.448611135193 4.1094e-05 deg
tp 2456311.571979376147
(2013-Jan-19.07197938)
0.00022309 JED
period 1961.382455671434
5.37
7.9455e-06
2.175e-08
d
yr
n .1835440094607975 7.4353e-10 deg/d
Q 3.184987614650302 8.6015e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1809  
   data-arc span      42189 days (115.51 yr)  
   first obs. used      1899-05-02  
   last obs. used      2014-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53415  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:42:30  

Additional Information
 Earth MOID = 1.93638 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 7.24 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
diameter diameter 208.77 km 4.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
rotation period rot_per 4.775 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Di Martino, M.; Cacciatori, S. (1984) Astron. Astrophys. 130, 206-207.]
[Zappala, V.; Di Martino, M.; Hanslmeier, A.; Schober, H.J. (1985) Astron. Astrophys. 147, 1, 35-38.]
[Gil Hutton, R. (1990) Bol. Asoc. Argent. Astron. 36, 193-200.]
[Dotto, E.; De Angelis, G.; Di Martino, M.; Barucci, M.A.; et al. (1995) Icarus 117, 313-327.]
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.]
[Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2003) Abstracts of Photometry and Polarimetry of Asteroids: Impact on Collaboration, Kharkiv, 9-10.]
[Prokofeva, V.V.; Karachkina, L.G. (2004) Astron. Vestn. 38, 126-138; Solar System Res. 38, 108-119.]
[Dymock, R. (2005) Minor Planet Bul. 32, 52.]
[Fauerbach, M.; Bennett, T. (2005) Minor Planet Bul. 32, 80-81.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Marchis, F.; Kaasalainen, M.; Hom, E.F.Y.; Berthier, J.; et al. (2006) Icarus 185, 39-63.]
[Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2007) Planet. Space Sci. 55, 986-997.]
[Durech, J.; Kaasalainen, M.; Marciniak, A.; et al. (2007) Astron. Astrophys. 465, 331-337.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
geometric albedo albedo 0.0515   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
B-V BV .668 mag .011 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=2.57, mean=12.70, max.=19.07) deg.
U-B UB .308 mag .021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=2.57, mean=12.70, max.=19.07) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
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)

423 Diotima (1896 DB)          Discovered 1896-Dec-07 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1896 DB = 1951 UV = 1975 LV 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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