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1929 Kollaa (1939 BS)
Classification: Main-belt Asteroid          SPK-ID: 2001929
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07444865109062383 3.406e-08  
a 2.362426838853644 7.463e-09 au
q 2.186547347400703 8.0754e-08 au
i 7.779972981151795 3.9287e-06 deg
node 65.42716964171366 2.9732e-05 deg
peri 71.2586184559825 4.1263e-05 deg
M 29.36871521078351 2.7941e-05 deg
tp 2458492.302201109853
(2019-Jan-08.80220111)
0.00010292 TDB
period 1326.282315072166
3.63
6.2847e-06
1.721e-08
d
yr
n .2714354220884048 1.2862e-09 deg/d
Q 2.538306330306584 8.0186e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2225  
   data-arc span      18734 days (51.29 yr)  
   first obs. used      1968-01-24  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39882  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:28:48  

Additional Information
 Earth MOID = 1.21562 au 
 Jupiter MOID = 2.49841 au 
 T_jup = 3.534 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6   n/a MPO435715  
diameter diameter 7.772 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.9887 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Ryan, W.H.; Ryan, E.V. (2007) UNPUBLISHED.]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.393   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B V   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)

1929 Kollaa           Discovered 1939 Jan. 20 by Y. Vaisala at Turku.
Named for a river in Karelia, scene of violent battles during the Finnish winter war.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5450Last Updated: 2006-03-21

Alternate Designations
 1939 BS = 1939 CH = 1943 GG = 1968 BH = 1976 JF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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