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JPL Small-Body Database Browser
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172779 (2004 ET65)
Classification: Main-belt Asteroid          SPK-ID: 2172779
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01962840662670869 5.118e-08  
a 2.925888060270262 3.2889e-08 au
q 2.868457539679045 1.5e-07 au
i 13.10577980256602 5.817e-06 deg
node 90.26264856096476 2.3303e-05 deg
peri 333.8966651044805 0.00013914 deg
M 185.635468837708 0.00013684 deg
tp 2459885.902272956666
(2022-Nov-02.40227296)
0.0006956 TDB
period 1828.037021862685
5.00
3.0823e-05
8.439e-08
d
yr
n .1969325542614978 3.3205e-09 deg/d
Q 2.983318580861479 3.3534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      6476 days (17.73 yr)  
   first obs. used      2001-08-14  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:38  

Additional Information
 Earth MOID = 1.88732 au 
 Jupiter MOID = 2.18723 au 
 T_jup = 3.239 
[ 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 15.2   n/a MPO433109  
diameter diameter 5.286 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172779 (2004 ET65)          Discovered 2004-Mar-14 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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