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3971 Voronikhin (1979 YM8)
Classification: Main-belt Asteroid          SPK-ID: 2003971
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .183492309382381 6.5508e-08  
a 2.85009507793713 2.5192e-08 AU
q 2.327124550127089 1.8028e-07 AU
i 13.01097739258324 6.7848e-06 deg
node 284.8438316515143 3.0273e-05 deg
peri 83.73540382869007 3.4865e-05 deg
M 128.5849213566104 1.6959e-05 deg
tp 2456172.766954164834
(2012-Sep-02.26695416)
8.125e-05 JED
period 1757.468092809484
4.81
2.3302e-05
6.38e-08
d
yr
n .204840134209495 2.7159e-09 deg/d
Q 3.373065605747172 2.9815e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      21333 days (58.41 yr)  
   first obs. used      1955-12-20  
   last obs. used      2014-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51568  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:27:19  

Additional Information
 Earth MOID = 1.36795 AU 
 T_jup = 3.243 
[ 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 11.2 mag n/a MPO256892  
diameter diameter 29.32 km 2.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
rotation period rot_per 5.552 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Shipley, H.; Dillard, A.; Kendall, J.; Reichert, M.; et al. (2008) Minor Planet Bul. 35, 99-101.]
[Bennefeld, C.; Cantue, J.; Holly, V.; Jordon, L.; Martin, T.; Soar, E.; Swinney, T. (2009) Minor Planet Bul. 36, 45-48.]
geometric albedo albedo 0.0392   0.006 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
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)

3971 Voronikhin (1979 YM8)          Discovered 1979-Dec-23 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1979 YM8 = 1940 WQ = 1955 YD = 1956 AJ1 = 1971 BF3 = 1974 XP = 1980 AD 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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