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JPL Small-Body Database Browser
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172818 (2004 HS58)
Classification: Outer Main-belt Asteroid          SPK-ID: 2172818
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2033690279263971 5.6442e-08  
a 3.942779553909372 6.05e-08 au
q 3.140940308702749 2.2606e-07 au
i 5.629259723300359 7.1701e-06 deg
node 53.37766552954108 5.8797e-05 deg
peri 288.0152204165323 6.1271e-05 deg
M 289.8410590188471 1.9861e-05 deg
tp 2459557.791853616689
(2021-Dec-09.29185362)
0.00016673 TDB
period 2859.579470504023
7.83
6.5819e-05
1.802e-07
d
yr
n .1258926369115901 2.8977e-09 deg/d
Q 4.744618799115995 7.2804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7527 days (20.61 yr)  
   first obs. used      1998-09-24  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5246  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:41  

Additional Information
 Earth MOID = 2.13932 au 
 Jupiter MOID = .772988 au 
 T_jup = 3.016 
[ 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 14.3   n/a MPO436859  

172818 (2004 HS58)          Discovered 2004-Apr-24 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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