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3013 Dobrovoleva (1979 SD7)
Classification: Main-belt Asteroid          SPK-ID: 2003013
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1407642095722004 4.4906e-08  
a 2.358670991064327 1.1623e-08 AU
q 2.026654533366278 1.0507e-07 AU
i 3.662157100631652 5.5181e-06 deg
node 7.105156046641858 7.9741e-05 deg
peri 94.66554815745019 8.2797e-05 deg
M 182.0336187998546 2.1042e-05 deg
tp 2457654.586136476722
(2016-Sep-23.08613648)
7.9046e-05 JED
period 1323.120735184267
3.62
9.7801e-06
2.678e-08
d
yr
n .272084013519646 2.0112e-09 deg/d
Q 2.690687448762376 1.3259e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1116  
   data-arc span      12748 days (34.90 yr)  
   first obs. used      1979-09-23  
   last obs. used      2014-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49285  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:42:39  

Additional Information
 Earth MOID = 1.04724 AU 
 T_jup = 3.536 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO263372  
diameter diameter 11.02 km 0.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
rotation period rot_per 8.3025 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Molnar, L.A.; Haegert, M.J.; Beaumonts, C.N.; Block, M.J.; et al. (2008) Minor Planet Bul. 35, 9-12.]
geometric albedo albedo 0.0696   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

3013 Dobrovoleva (1979 SD7)          Discovered 1979-Sep-23 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1979 SD7 = 1981 GS 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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