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2258 Viipuri (1939 TA)
Classification: Main-belt Asteroid          SPK-ID: 2002258
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0808477510813521 1.8767e-08  
a 2.693648452494754 9.0212e-09 au
q 2.475873032906788 5.0837e-08 au
i 1.4790483063578 4.6537e-07 deg
node 307.3296365151992 2.9221e-05 deg
peri 174.0332943600202 3.0026e-05 deg
M 36.78344505345469 1.1085e-05 deg
tp 2459035.509210367522
(2020-Jul-05.00921037)
4.9733e-05 TDB
period 1614.766756658469
4.42
8.112e-06
2.221e-08
d
yr
n .2229424147577629 1.12e-09 deg/d
Q 2.911423872082719 9.7506e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3469  
   data-arc span      33972 days (93.01 yr)  
   first obs. used      1928-03-19  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41598  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:06:19  

Additional Information
 Earth MOID = 1.49161 au 
 Jupiter MOID = 2.13536 au 
 T_jup = 3.366 
[ 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 12.03   n/a E2021B10  
diameter diameter 26.255 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.834 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2003) Minor Planet Bull. 30, 46-48.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 234-239.]
geometric albedo albedo 0.049   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B C   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)

2258 Viipuri (1939 TA)          Discovered 1939-Oct-07 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1939 TA = 1928 FL = 1950 DU = 1956 PG = 1969 ON = 1970 RS = 1972 BK = 1975 XD2 = 1979 UU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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