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4653 Tommaso (1976 GJ2)
Classification: Main-belt Asteroid          SPK-ID: 2004653
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1741721878481106 2.0584e-08  
a 2.68567649145915 9.4183e-09 au
q 2.217906341089472 5.7117e-08 au
i 11.25524319753036 7.0975e-07 deg
node 204.7820619259034 4.0464e-06 deg
peri 55.21189504930581 6.484e-06 deg
M 13.00772713618709 3.0381e-06 deg
tp 2459142.413141301150
(2020-Oct-19.91314130)
1.3467e-05 TDB
period 1607.603612272227
4.40
8.4565e-06
2.315e-08
d
yr
n .2239357993797781 1.178e-09 deg/d
Q 3.153446641828828 1.1059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2657  
   data-arc span      16227 days (44.43 yr)  
   first obs. used      1976-04-25  
   last obs. used      2020-09-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:36:03  

Additional Information
 Earth MOID = 1.22395 au 
 Jupiter MOID = 1.94563 au 
 T_jup = 3.325 
[ 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 12.73   n/a E2021B10  
diameter diameter 7.839 km 0.356 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.417 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.262   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4653 Tommaso (1976 GJ2)          Discovered 1976-Apr-01 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1976 GJ2 = 1985 HD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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