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704 Interamnia (1910 KU)
Classification: Main-belt Asteroid          SPK-ID: 2000704
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 126 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1543146478351512 2.9645e-08  
a 3.057515862219878 5.7841e-09 au
q 2.585696378691028 9.1449e-08 au
i 17.30873397908583 3.1379e-06 deg
node 280.2981405997444 1.0948e-05 deg
peri 95.20805692656307 1.5157e-05 deg
M 276.1070917690953 1.1979e-05 deg
tp 2458055.565859143267
(2017-Oct-29.06585914)
6.5648e-05 JED
period 1952.771846228907
5.35
5.5412e-06
1.517e-08
d
yr
n .1843533337984228 5.2313e-10 deg/d
Q 3.529335345748727 6.6766e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3130  
   data-arc span      37395 days (102.38 yr)  
   first obs. used      1910-10-09  
   last obs. used      2013-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55163  
   data source      ORB  
   producer      Davide Farnocchia  
   solution date      2013-Jul-16 08:47:22  

Additional Information
 Earth MOID = 1.65761 au 
 Jupiter MOID = 2.14415 au 
 T_jup = 3.148 
[ 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 5.94 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 28
magnitude slope G -0.02   n/a PDS3 (MPC 17259) Fit
diameter diameter 316.62 km 5.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 28
GM GM 5. km^3/s^2 n/a Landgraf, IAU Symposium #152, 1992  
rotation period rot_per 8.727 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Tempesti, P. (1975) Mem. Soc. Astron. Ital. 46, 397-405.]
[Lustig, G.; Hahn, G. (1976) Acta Physica Austriaca 44, 199-205.]
[Michalowski, T.; Velichko, F.P.; Di Martino, M.; Krugly, et al. (1995) Icarus 118, 292-301.]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0742   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 28
B-V BV .645 mag .014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=11; phase (min.=1.61, mean=13.90, max.=22.24) deg.
U-B UB .259 mag .021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=10; phase (min.=1.61, mean=13.78, max.=22.24) deg.
Tholen spectral type spec_T F   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B B   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)

704 Interamnia (1910 KU)          Discovered 1910-Oct-02 by Cerulli, V. at Teramo
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1910 KU = 1952 MW 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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