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631 Philippina (1907 YJ)
Classification: Main-belt Asteroid          SPK-ID: 2000631
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0820651130220659 4.1353e-08  
a 2.793339270539518 1.4231e-08 au
q 2.564103567593718 1.1643e-07 au
i 18.91655263032638 5.7159e-06 deg
node 224.7089522166537 1.5349e-05 deg
peri 277.8574191928429 3.5361e-05 deg
M 217.6973891756306 3.2796e-05 deg
tp 2458274.553432728815
(2018-Jun-05.05343273)
0.00015615 JED
period 1705.233898216138
4.67
1.3031e-05
3.568e-08
d
yr
n .2111147335134491 1.6133e-09 deg/d
Q 3.022574973485319 1.5399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1208  
   data-arc span      39842 days (109.08 yr)  
   first obs. used      1907-03-22  
   last obs. used      2016-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54757  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:29:11  

Additional Information
 Earth MOID = 1.64793 au 
 Jupiter MOID = 2.13516 au 
 T_jup = 3.244 
[ 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 8.70 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
diameter diameter 57.65 km 1.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
rotation period rot_per 5.899 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Schober, H.J. (1983) Astron. Astrophys. Suppl. Ser. 53, 71.]
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J. (2006) IAU 2006, poster paper.]
[Buchheim, R.K.; Roy, R.; Behrend, R. (2007) Minor Planet Bul. 34, 13-14.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Garceran, A.C.; Aznar, A.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bul. 43, 92-97.]
geometric albedo albedo 0.1760   0.008 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 11
B-V BV .864 mag .026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=6.32, mean=10.52, max.=15.27) deg.
U-B UB .439 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=6.32, mean=10.69, max.=15.27) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B S   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)

631 Philippina (1907 YJ)          Discovered 1907-Mar-21 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1907 YJ = 1951 UB1 = A907 GL 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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