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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1839538561983138 6.4266e-08  
a 2.848734907891599 2.4221e-08 AU
q 2.324699136298191 1.7738e-07 AU
i 13.00978071598785 6.4679e-06 deg
node 284.8343217237518 3.0206e-05 deg
peri 83.64881610562082 3.4212e-05 deg
M 169.6734583219242 1.6717e-05 deg
tp 2456172.771528428149
(2012-Sep-02.27152843)
7.8588e-05 JED
period 1756.210150443801
4.81
2.2398e-05
6.132e-08
d
yr
n .2049868575859368 2.6143e-09 deg/d
Q 3.372770679485007 2.8676e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      926  
   data-arc span      21636 days (59.24 yr)  
   first obs. used      1955-12-20  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51385  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:16:20  

Additional Information
 Earth MOID = 1.36686 AU 
 T_jup = 3.244 
[ 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 11.3 mag n/a MPO296166  
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 LCDB (Rev. 2015-May); Warner et al., 2009 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

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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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