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JPL Small-Body Database Browser
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305540 (2008 HB7)
Classification: Main-belt Asteroid          SPK-ID: 2305540
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06035353097623468 5.5637e-08  
a 3.07822471532356 4.2441e-08 au
q 2.892442984615469 1.6599e-07 au
i 11.36413909699039 7.7916e-06 deg
node 8.163421554623028 3.1549e-05 deg
peri 130.2974984971268 8.8156e-05 deg
M 59.2864991420323 7.7723e-05 deg
tp 2458275.635531699749
(2018-Jun-06.13553170)
0.00042761 TDB
period 1972.644873294189
5.40
4.0797e-05
1.117e-07
d
yr
n .1824961019967184 3.7743e-09 deg/d
Q 3.264006446031651 4.5003e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      6374 days (17.45 yr)  
   first obs. used      2001-11-17  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52017  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:56:01  

Additional Information
 Earth MOID = 1.91845 au 
 Jupiter MOID = 1.74566 au 
 T_jup = 3.196 
[ 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 15.9   n/a MPO433970  

305540 (2008 HB7)          Discovered 2008-Apr-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 HB7 = 2005 SV124 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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