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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842766351602247 6.3544e-08  
a 2.848675784798999 2.3492e-08 au
q 2.323731396513828 1.7593e-07 au
i 13.00945701420511 6.3466e-06 deg
node 284.8258221159448 3.0056e-05 deg
peri 83.55748707140543 3.3877e-05 deg
M 292.824556255622 1.7205e-05 deg
tp 2457928.195898613746
(2017-Jun-23.69589861)
8.5844e-05 JED
period 1756.155477734704
4.81
2.1724e-05
5.948e-08
d
yr
n .2049932392457474 2.5358e-09 deg/d
Q 3.373620173084171 2.7821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      22024 days (60.30 yr)  
   first obs. used      1955-12-20  
   last obs. used      2016-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50918  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:46:20  

Additional Information
 Earth MOID = 1.36473 au 
 Jupiter MOID = 2.27754 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. 2016-February); 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.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]
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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