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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .140863502481383 5.1294e-08  
a 2.358399033061377 1.1469e-08 AU
q 2.026186685015644 1.2094e-07 AU
i 3.662282419073272 6.3989e-06 deg
node 7.111558482417216 8.9068e-05 deg
peri 94.62098959356997 9.316e-05 deg
M 127.6569567521736 2.5046e-05 deg
tp 2456331.399014594717
(2013-Feb-07.89901459)
9.1335e-05 JED
period 1322.891905325218
3.62
9.65e-06
2.642e-08
d
yr
n .2721310777931612 1.9851e-09 deg/d
Q 2.69061138110711 1.3085e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      12576 days (34.43 yr)  
   first obs. used      1979-09-23  
   last obs. used      2014-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52753  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:41:25  

Additional Information
 Earth MOID = 1.0465 AU 
 T_jup = 3.537 
[ 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. 2013-Sep-12) 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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