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404 Arsinoe (1895 BY)
Classification: Main-belt Asteroid          SPK-ID: 2000404
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 94 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1994356424561385 3.2057e-08  
a 2.59360076668197 8.5741e-09 AU
q 2.076344331504018 8.3505e-08 AU
i 14.1106595700641 4.1981e-06 deg
node 92.64370031615599 1.794e-05 deg
peri 120.4740013093984 2.1639e-05 deg
M 259.9531652853981 1.3622e-05 deg
tp 2457424.488393268752
(2016-Feb-05.98839327)
5.8821e-05 JED
period 1525.643684901842
4.18
7.5654e-06
2.071e-08
d
yr
n .235965975255331 1.1701e-09 deg/d
Q 3.110857201859922 1.0284e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      42218 days (115.59 yr)  
   first obs. used      1899-05-30  
   last obs. used      2014-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4673  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 12:53:34  

Additional Information
 Earth MOID = 1.10769 AU 
 T_jup = 3.348 
[ 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 9.01 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 26
diameter diameter 97.71 km 1.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 26
rotation period rot_per 8.887 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Schober, H.J. (1981) Astron. Astrophys. 100, 311-313.]
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2003) 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]
geometric albedo albedo 0.0461   0.001 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 26
B-V BV .675 mag .031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=3.57, mean=8.17, max.=19.96) deg.
U-B UB .333 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=3.57, mean=8.17, max.=19.96) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   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)

404 Arsinoe (1895 BY)          Discovered 1895-Jun-20 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1895 BY = 1947 XE = 1975 VB10 = A901 VC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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