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50 Virginia
Classification: Main-belt Asteroid          SPK-ID: 2000050
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 84 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2853830573326558 3.3029e-08  
a 2.649919087301987 4.7533e-09 AU
q 1.893677076483585 8.7747e-08 AU
i 2.837155561739446 4.2204e-06 deg
node 173.5289937751203 7.4203e-05 deg
peri 200.2593671330898 7.4325e-05 deg
M 152.5453927597633 7.0754e-06 deg
tp 2456332.857550868196
(2013-Feb-09.35755087)
3.0028e-05 JED
period 1575.604987729572
4.31
4.2393e-06
1.161e-08
d
yr
n .2284836636108621 6.1476e-10 deg/d
Q 3.406161098120389 6.1098e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1924  
   data-arc span      57208 days (156.63 yr)  
   first obs. used      1857-10-19  
   last obs. used      2014-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5652  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:08:29  

Additional Information
 Earth MOID = .894627 AU 
 T_jup = 3.330 
[ 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 9.24 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
diameter diameter 99.82 km 5.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 14.315 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Shevchenko, V.G.; Piironen, J.; Erikson, A.; Bel'skaya, I.N.; et al. (1997) Planet. Space Sci. 45, 1615-1623.]
[Pilcher, F. (2009) Minor Planet Bul. 36, 25-27.]
geometric albedo albedo 0.0357   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
B-V BV .703 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=2.19, mean=15.69, max.=23.71) deg.
U-B UB .347 mag .045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=2.19, mean=15.69, max.=23.71) deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
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)

50 Virginia          Discovered 1857-Oct-04 by Ferguson, J. at Washington
Independent discovery Oct. 19 by R. Luther, Dusseldorf, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1977 LU1 = A900 SB = A909 WA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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