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1789 Dobrovolsky (1966 QC)
Classification: Main-belt Asteroid          SPK-ID: 2001789
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882418901160721 2.7355e-08  
a 2.213812540137555 4.7809e-09 au
q 1.797080283219399 6.0206e-08 au
i 1.976231152330818 3.5583e-06 deg
node 102.081854327978 0.00010377 deg
peri 214.9222087390003 0.00010435 deg
M 134.6958696156345 1.2304e-05 deg
tp 2458550.345631215948
(2019-Mar-07.84563122)
4.0479e-05 TDB
period 1203.122064727725
3.29
3.8973e-06
1.067e-08
d
yr
n .2992215092335379 9.6929e-10 deg/d
Q 2.63054479705571 5.6809e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3023  
   data-arc span      27973 days (76.59 yr)  
   first obs. used      1943-09-24  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41347  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:30:21  

Additional Information
 Earth MOID = .784036 au 
 Jupiter MOID = 2.65628 au 
 T_jup = 3.631 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.3   n/a MPO502170  
diameter diameter 7.922 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.8125 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.J.; Pravec, P.; Koehn, B.W. (2019) Minor Plantet Bull. 46, 238-265.]
geometric albedo albedo 0.185   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1789 Dobrovolsky (1966 QC)          Discovered 1966-Aug-19 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1966 QC = 1936 KK = 1939 GR = 1943 SG = 1946 NA = 1953 TC2 = 1953 VX3 = 1955 EJ = 1956 PD = 1956 RT = 1969 OF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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