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JPL Small-Body Database Browser
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312583 (2009 HH81)
Classification: Main-belt Asteroid          SPK-ID: 2312583
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222126633506885 4.2606e-08  
a 2.619505488148019 2.5996e-08 au
q 2.299368745779705 1.2036e-07 au
i 13.15064508417588 4.7106e-06 deg
node 132.5690671615705 2.0289e-05 deg
peri 88.92312597276083 3.1107e-05 deg
M 123.3980971454146 2.729e-05 deg
tp 2458069.697013320920
(2017-Nov-12.19701332)
0.00011303 TDB
period 1548.557713813738
4.24
2.3052e-05
6.311e-08
d
yr
n .2324743836078305 3.4606e-09 deg/d
Q 2.939642230516334 2.9173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      8175 days (22.38 yr)  
   first obs. used      1997-07-06  
   last obs. used      2019-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57906  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:49  

Additional Information
 Earth MOID = 1.33722 au 
 Jupiter MOID = 2.16797 au 
 T_jup = 3.358 
[ 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 15.8   n/a MPO455304  

312583 (2009 HH81)          Discovered 2009-Apr-28 by Tozzi, F. at Skylive
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2009 HH81 = 1997 NY3 = 2000 CW124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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