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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1956905764197193 4.0682e-08  
a 2.307570754329074 1.1833e-08 au
q 1.856000903285131 9.3673e-08 au
i 23.36911624427727 6.8193e-06 deg
node 88.72172209682921 1.0706e-05 deg
peri 223.0670091694168 2.3929e-05 deg
M 203.0099997382401 2.4698e-05 deg
tp 2459758.842202669991
(2022-Jun-28.34220267)		 8.9346e-05 TDB
period 1280.356663647688
3.51		 9.8482e-06
2.696e-08		 d
yr
n .2811716533535065 2.1627e-09 deg/d
Q 2.759140605373018 1.4148e-08 au
   Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      8062 days (22.07 yr)  
   first obs. used      1998-12-16  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:24:33  

Additional Information
 Earth MOID = .882525 au 
 Jupiter MOID = 2.52728 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 15.07   n/a E2021B55  
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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