Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .074927433359276 5.4522e-08  
a 2.359166690059927 2.3567e-08 au
q 2.182400385107038 1.281e-07 au
i 6.72322802575319 6.5849e-06 deg
node 42.21733349817124 5.218e-05 deg
peri 46.10109261895744 6.9422e-05 deg
M 292.2889997979012 4.722e-05 deg
tp 2459249.439089412914
(2021-Feb-03.93908941)
0.00017486 TDB
period 1323.537858267692
3.62
1.9833e-05
5.43e-08
d
yr
n .2719982641608641 4.0757e-09 deg/d
Q 2.535932995012816 2.5333e-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 = 1.20429 au 
 Jupiter MOID = 2.60187 au 
 T_jup = 3.539 
[ 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-12 18:03 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin