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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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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01299408984226748 1.5003e-08  
a 2.738930779170495 1.0965e-08 au
q 2.703340866554202 4.474e-08 au
i 9.668585012380881 6.1671e-07 deg
node 293.5938447202104 5.958e-06 deg
peri 344.2437765948085 0.00011888 deg
M 228.4457962203498 0.0001186 deg
tp 2459805.523496710258
(2022-Aug-14.02349671)		 0.00054554 TDB
period 1655.655635151851
4.53		 9.9423e-06
2.722e-08		 d
yr
n .2174365202260083 1.3057e-09 deg/d
Q 2.774520691786789 1.1107e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3053  
   data-arc span      23924 days (65.50 yr)  
   first obs. used      1955-09-14  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40892  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:01:55  

Additional Information
 Earth MOID = 1.68575 au 
 Jupiter MOID = 2.31824 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 12.13   n/a E2021B10  
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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