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120255 (2004 GG17)
Classification: Main-belt Asteroid          SPK-ID: 2120255
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1956421899236259 4.105e-08  
a 2.307632028898285 1.1838e-08 au
q 1.856161845226724 9.4464e-08 au
i 23.3707019682307 6.9648e-06 deg
node 88.72506245004888 1.0818e-05 deg
peri 223.0329384575926 2.4219e-05 deg
M 146.822634723438 2.4744e-05 deg
tp 2458478.297704569486
(2018-Dec-25.79770457)
8.6871e-05 TDB
period 1280.407661319369
3.51
9.8529e-06
2.698e-08
d
yr
n .2811604544985662 2.1636e-09 deg/d
Q 2.759102212569845 1.4154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      890  
   data-arc span      7716 days (21.13 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48885  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:17:15  

Additional Information
 Earth MOID = .88447 au 
 Jupiter MOID = 2.5277 au 
 T_jup = 3.454 
[ 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 15.1   n/a MPO502800  
diameter diameter 2.583 km 0.460 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.318   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120255 (2004 GG17)          Discovered 2004-Apr-10 by NEAT at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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