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120273 (2004 HP5)
Classification: Main-belt Asteroid          SPK-ID: 2120273
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2441943703373926 6.4307e-08  
a 2.807570605841514 1.2819e-08 au
q 2.121977669570274 1.84e-07 au
i 8.280767817522413 6.5307e-06 deg
node 346.8201269153366 2.509e-05 deg
peri 332.1315385926264 2.6944e-05 deg
M 66.26478509042965 7.8263e-06 deg
tp 2458684.217800576309
(2019-Jul-19.71780058)
3.7639e-05 TDB
period 1718.28206546124
4.70
1.1768e-05
3.222e-08
d
yr
n .2095115855750754 1.4349e-09 deg/d
Q 3.493163542112755 1.5949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      614  
   data-arc span      7027 days (19.24 yr)  
   first obs. used      2000-09-02  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51475  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 10:00:08  

Additional Information
 Earth MOID = 1.11342 au 
 Jupiter MOID = 1.86188 au 
 T_jup = 3.263 
[ 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 MPO502801  
diameter diameter 2.873 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.235   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120273 (2004 HP5)          Discovered 2004-Apr-17 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2004 HP5 = 2005 QJ51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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