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175092 (2004 HJ55)
Classification: Main-belt Asteroid          SPK-ID: 2175092
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06024194228020537 4.866e-08  
a 2.749429961051085 2.1774e-08 au
q 2.583798960033978 1.3508e-07 au
i 12.61450703086587 4.7864e-06 deg
node 124.3395287285784 2.453e-05 deg
peri 105.8551659047665 5.373e-05 deg
M 204.4172059235323 5.2028e-05 deg
tp 2459920.150255870714
(2022-Dec-06.65025587)
0.00024551 TDB
period 1665.184724643294
4.56
1.9781e-05
5.416e-08
d
yr
n .2161922306110015 2.5682e-09 deg/d
Q 2.915060962068192 2.3086e-08 au
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      6175 days (16.91 yr)  
   first obs. used      2004-03-12  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57347  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:00  

Additional Information
 Earth MOID = 1.60312 au 
 Jupiter MOID = 2.18662 au 
 T_jup = 3.309 
[ 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 15.7   n/a MPO439998  

175092 (2004 HJ55)          Discovered 2004-Apr-24 by CSS at Catalina
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2004 HJ55 = 2005 MG18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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