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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2441839296362281 6.1008e-08  
a 2.80825736077179 1.2412e-08 au
q 2.122526042988672 1.7415e-07 au
i 8.28069476821042 6.0123e-06 deg
node 346.8139354881225 2.5085e-05 deg
peri 332.1935708241949 2.6669e-05 deg
M 108.0976875207267 7.4025e-06 deg
tp 2458684.359796925464
(2019-Jul-19.85979693)		 3.5453e-05 TDB
period 1718.912562964916
4.71		 1.1396e-05
3.12e-08		 d
yr
n .2094347366797085 1.3884e-09 deg/d
Q 3.493988678554908 1.5442e-08 au
   Orbit Determination Parameters
   # obs. used (total)      655  
   data-arc span      7436 days (20.36 yr)  
   first obs. used      2000-09-02  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:24:35  

Additional Information
 Earth MOID = 1.11201 au 
 Jupiter MOID = 1.86131 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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