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JPL Small-Body Database Browser
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32504 (2001 HP8)
Classification: Inner Main-belt Asteroid          SPK-ID: 2032504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1122761415264776 4.2403e-08  
a 1.952705307547077 8.1405e-09 au
q 1.733463090077418 8.4702e-08 au
i 23.90890675488547 5.3877e-06 deg
node 116.527437498064 1.0428e-05 deg
peri 271.5386738236568 2.5247e-05 deg
M 205.6507187923259 2.385e-05 deg
tp 2459427.822339594341
(2021-Aug-01.32233959)
6.6295e-05 TDB
period 996.6748212256288
2.73
6.2325e-06
1.706e-08
d
yr
n .3612010580916468 2.2587e-09 deg/d
Q 2.171947525016737 9.0545e-09 au
  Orbit Determination Parameters
   # obs. used (total)      837  
   data-arc span      13404 days (36.70 yr)  
   first obs. used      1982-07-17  
   last obs. used      2019-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52538  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:32:07  

Additional Information
 Earth MOID = .863946 au 
 Jupiter MOID = 3.19402 au 
 T_jup = 3.778 
[ 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 15.4   n/a MPO468129  

32504 (2001 HP8)          Discovered 2001-Apr-21 by LINEAR at Socorro
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 HP8 = 2000 ER21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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