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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 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03567936418825618 3.2622e-08  
a 3.067415487371865 7.4345e-09 au
q 2.957972053081227 1.0037e-07 au
i 11.24374020680101 3.6909e-06 deg
node 69.37738173577843 1.7692e-05 deg
peri 199.0381838894108 5.3762e-05 deg
M 135.304790940697 5.2323e-05 deg
tp 2458262.989836402538
(2018-May-24.48983640)
0.00028407 TDB
period 1962.263546243936
5.37
7.1339e-06
1.953e-08
d
yr
n .1834615949978245 6.6699e-10 deg/d
Q 3.176858921662503 7.6998e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3322  
   data-arc span      44377 days (121.50 yr)  
   first obs. used      1899-05-02  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43546  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:29:44  

Additional Information
 Earth MOID = 1.94448 au 
 Jupiter MOID = 1.8595 au 
 T_jup = 3.201 
[ hide covariance matrix ]
Orbital Elements at Epoch 2454103.5 (2007-Jan-03.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04115298557004648 3.1899e-08  
q 2.942618309516276 9.9166e-08 au
tp 2454375.904254792499
(2007-Oct-02.40425479)
0.00024817 TDB
node 69.55222129499712 1.7706e-05 deg
peri 205.9805249088629 4.8458e-05 deg
i 11.24089152546757 3.689e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3322  
   data-arc span      44377 days (121.50 yr)  
   first obs. used      1899-05-02  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43546  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:29:44  

Additional Information
 Jupiter MOID = 1.8595 au 
 T_jup = 3.201 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.017558945504037E-15 -3.155420678944233E-15 -6.718162117542591E-13 -7.752672131825435E-16 -1.136536763730868E-13 -3.246192213641145E-16
q -3.155420678944233E-15 9.833958042634109E-15 2.573823433167251E-12 3.559134782279604E-15 4.387117284358429E-13 1.314050878383031E-15
tp -6.718162117542591E-13 2.573823433167251E-12 6.158752392054711E-8 9.527710241623867E-12 1.120890219949324E-8 3.553914580019923E-12
node -7.752672131825435E-16 3.559134782279604E-15 9.527710241623867E-12 3.135109334495313E-10 -3.056048015326144E-10 -2.209002186366082E-12
peri -1.136536763730868E-13 4.387117284358429E-13 1.120890219949324E-8 -3.056048015326144E-10 2.348175239692826E-9 2.856294994252999E-12
i -3.246192213641145E-16 1.314050878383031E-15 3.553914580019923E-12 -2.209002186366082E-12 2.856294994252999E-12 1.360852690898285E-11

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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