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72 Feronia
Classification: Main-belt Asteroid          SPK-ID: 2000072
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 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208873960864099 3.4837e-08  
a 2.26589485372766 4.656e-09 AU
q 1.991976725054926 7.8737e-08 AU
i 5.416479429446763 4.0177e-06 deg
node 207.9785175045748 4.0666e-05 deg
peri 103.1408455785049 4.3405e-05 deg
M 264.2610396825162 1.6483e-05 deg
tp 2457331.817413745762
(2015-Nov-05.31741375)
5.7371e-05 JED
period 1245.827911154918
3.41
3.84e-06
1.051e-08
d
yr
n .288964468348016 8.9066e-10 deg/d
Q 2.539812982400393 5.2189e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1659  
   data-arc span      54386 days (148.90 yr)  
   first obs. used      1865-06-23  
   last obs. used      2014-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58647  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:08:44  

Additional Information
 Earth MOID = .987357 AU 
 T_jup = 3.601 
[ 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 8.94 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
diameter diameter 85.90 km 3.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
rotation period rot_per 8.097 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) 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]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
geometric albedo albedo 0.0636   0.006 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
B-V BV .785 mag .014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=2.28, mean=7.77, max.=15.33) deg.
U-B UB .375 mag .040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=2.28, mean=7.77, max.=15.33) deg.
Tholen spectral type spec_T TDG   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

72 Feronia          Discovered 1861-May-29 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1927 TK = 1950 LJ = A902 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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