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JPL Small-Body Database Browser
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249460 (2009 HZ84)
Classification: Main-belt Asteroid          SPK-ID: 2249460
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2273042806986937 5.7051e-08  
a 2.436060302154447 2.0596e-08 au
q 1.882333367434588 1.3304e-07 au
i 2.162121905993169 5.9499e-06 deg
node 179.6906794540526 0.00013489 deg
peri 166.4912529553984 0.00013558 deg
M 94.94188334643262 1.6111e-05 deg
tp 2458234.243095538592
(2018-Apr-25.74309554)
5.9369e-05 TDB
period 1388.770487362164
3.80
1.7612e-05
4.822e-08
d
yr
n .2592220984503965 3.2874e-09 deg/d
Q 2.989787236874306 2.5278e-08 au
  Orbit Determination Parameters
   # obs. used (total)      411  
   data-arc span      6522 days (17.86 yr)  
   first obs. used      2001-02-20  
   last obs. used      2018-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5117  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:39:37  

Additional Information
 Earth MOID = .874474 au 
 Jupiter MOID = 2.4298 au 
 T_jup = 3.468 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO413153  
rotation period rot_per 3.50 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

249460 (2009 HZ84)          Discovered 2009-Apr-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

Alternate Designations
 2009 HZ84 = 2005 ED158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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