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JPL Small-Body Database Browser
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226686 (2004 HZ57)
Classification: Main-belt Asteroid          SPK-ID: 2226686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0744086954926043 5.4478e-08  
a 2.360555178097198 2.3851e-08 au
q 2.184909346656673 1.2791e-07 au
i 6.723979637848998 6.5854e-06 deg
node 42.24184978448831 5.2152e-05 deg
peri 45.74711110373259 6.965e-05 deg
M 183.8546211405575 4.7064e-05 deg
tp 2459248.669236961379
(2021-Feb-03.16923696)
0.00017626 TDB
period 1324.706482889307
3.63
2.0078e-05
5.497e-08
d
yr
n .2717583137472135 4.1188e-09 deg/d
Q 2.536201009537722 2.5626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      5662 days (15.50 yr)  
   first obs. used      2002-12-11  
   last obs. used      2018-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65276  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:11:04  

Additional Information
 Earth MOID = 1.20661 au 
 Jupiter MOID = 2.60333 au 
 T_jup = 3.538 
[ 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 16.6   n/a MPO437075  

226686 (2004 HZ57)          Discovered 2004-Apr-21 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 HZ57 = 2005 SA8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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