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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 84 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03864031599419664 2.6964e-08  
a 3.066497202437706 8.2508e-09 AU
q 2.948006781540193 8.3449e-08 AU
i 11.23201831722169 3.3291e-06 deg
node 69.48698496078018 1.6852e-05 deg
peri 200.9753732034815 4.3731e-05 deg
M 126.4486085978037 4.1042e-05 deg
tp 2456311.571993476614
(2013-Jan-19.07199348)
0.00022279 JED
period 1961.382454885524
5.37
7.916e-06
2.167e-08
d
yr
n .1835440095343422 7.4077e-10 deg/d
Q 3.184987623335219 8.5696e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1935  
   data-arc span      42320 days (115.87 yr)  
   first obs. used      1899-05-02  
   last obs. used      2015-03-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51891  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:00:08  

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 LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.]
[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]
[Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2007) Planet. Space Sci. 55, 986-997.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
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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