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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882835122181663 1.7223e-08  
a 2.213803782581627 4.2249e-09 au
q 1.796981031035297 3.8916e-08 au
i 1.976195389624015 9.4023e-07 deg
node 102.0810879711592 1.8391e-05 deg
peri 214.9547418466669 1.973e-05 deg
M 194.4936436018788 5.9515e-06 deg
tp 2459753.619910197784
(2022-Jun-23.11991020)
2.0624e-05 TDB
period 1203.114925641991
3.29
3.4441e-06
9.429e-09
d
yr
n .2992232847646715 8.5658e-10 deg/d
Q 2.630626534127958 5.0204e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3439  
   data-arc span      28306 days (77.50 yr)  
   first obs. used      1943-09-24  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39601  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:45:53  

Additional Information
 Earth MOID = .781958 au 
 Jupiter MOID = 2.656 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 12.38   n/a MPCxxxxx  
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. 2020-October); 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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