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3371 Giacconi (1955 RZ)
Classification: Main-belt Asteroid          SPK-ID: 2003371
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01303978120824267 3.3355e-08  
a 2.738955263808767 1.2167e-08 au
q 2.703239886429536 9.0828e-08 au
i 9.668839999262932 3.7517e-06 deg
node 293.5942465389227 2.1523e-05 deg
peri 343.7036577921442 0.00015385 deg
M 185.513677439012 0.00015311 deg
tp 2459802.980936102068
(2022-Aug-11.48093610)
0.00070382 TDB
period 1655.677836271482
4.53
1.1032e-05
3.02e-08
d
yr
n .2174336046019104 1.4488e-09 deg/d
Q 2.774670641187997 1.2325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2716  
   data-arc span      23788 days (65.13 yr)  
   first obs. used      1955-09-14  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4258  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:00:53  

Additional Information
 Earth MOID = 1.68763 au 
 Jupiter MOID = 2.31896 au 
 T_jup = 3.330 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.1   n/a MPO452210  
diameter diameter 10.973 km 1.718 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.258   0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Sq   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)

3371 Giacconi (1955 RZ)          Discovered 1955-Sep-14 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1955 RZ = 1955 TP = 1975 BK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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