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423 Diotima (A896 XA)
Classification: Main-belt Asteroid          SPK-ID: 2000423
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 112 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03567936325731571 3.2659e-08  
a 3.067415487774426 7.4735e-09 au
q 2.957972056325006 1.0051e-07 au
i 11.24374020310076 3.691e-06 deg
node 69.377384629202 1.7941e-05 deg
peri 199.0381785277854 5.4099e-05 deg
M 135.3047931003596 5.2525e-05 deg
tp 2458262.989824485612
(2018-May-24.48982449)
0.0002852 TDB
period 1962.263546630221
5.37
7.1713e-06
1.963e-08
d
yr
n .1834615949617089 6.7048e-10 deg/d
Q 3.176858919223846 7.7401e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3233  
   data-arc span      44337 days (121.39 yr)  
   first obs. used      1899-05-02  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:26:44  

Additional Information
 Earth MOID = 1.94448 au 
 Jupiter MOID = 1.8595 au 
 T_jup = 3.201 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.3   n/a MPO502157 IRAS observations used: 9
diameter diameter 175.859 km 3.854 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.775 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 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 Research 38, 108-119.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Dymock, R. (2005) Minor Planet Bull. 32, 52.]
[Fauerbach, M.; Bennett, T. (2005) Minor Planet Bull. 32, 80-81.]
[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.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2016) Astron. Astrophys., submitted.]
[Alton, K.B. (2017) Minor Planet Bull. 44, 188-189.]
[Hanus, J.; Delbo, M.; Ali-Lagoa, V.; Bolin, B.; et al. (2018) Icarus 299, 84-96.]
geometric albedo albedo 0.067   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.668   0.011 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=2.57, mean=12.70, max.=19.07) deg.
U-B UB 0.308   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 (A896 XA)          Discovered 1896-Dec-07 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A896 XA = 1951 UV = 1975 LV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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