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126 Velleda
Classification: Main-belt Asteroid          SPK-ID: 2000126
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 73 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1053144182507111 3.4253e-08  
a 2.44031279191406 6.5899e-09 AU
q 2.183312669883862 8.2315e-08 AU
i 2.923712735483562 3.8809e-06 deg
node 23.33759573532123 8.138e-05 deg
peri 328.3497582437614 8.3411e-05 deg
M 147.0126597868963 1.8566e-05 deg
tp 2456431.884222729982
(2013-May-19.38422273)
7.1613e-05 JED
period 1392.408518517615
3.81
5.6402e-06
1.544e-08
d
yr
n .2585448129714567 1.0473e-09 deg/d
Q 2.697312913944257 7.284e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1791  
   data-arc span      51621 days (141.33 yr)  
   first obs. used      1872-11-26  
   last obs. used      2014-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60419  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:09:12  

Additional Information
 Earth MOID = 1.1786 AU 
 T_jup = 3.493 
[ 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 9.27 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
diameter diameter 44.82 km 1.3 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 5.3672 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Dovgopol, A.N.; Krugly, Yu.N.; Shevchenko, V.G. (1992) Acta Astron. 42, 67-72.]
[Licchelli, D. (2006) Minor Planet Bul. 33, 11-13.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2011) Minor Planet Bul. 38, 156-158.]
[Behrend, R. (2011) 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]
geometric albedo albedo 0.1723   0.010 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
B-V BV .865 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=5.29, mean=10.50, max.=17.49) deg.
U-B UB .496 mag .042 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=5.29, mean=10.50, max.=17.49) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

126 Velleda          Discovered 1872-Nov-05 by Henry, Paul at Paris
In their cooperative program it will probably never be known which of the Henry brothers discovered which planet. With strict impartiality, these discoveries were announced as having been made alternatively by Prosper and by Paul.
Note: "planet" implies "minor planet"
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1949 YF = 1950 BD1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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