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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1122414292344005 4.2413e-08  
a 1.952888352721818 8.1812e-09 au
q 1.733693372877107 8.4735e-08 au
i 23.90809186848869 5.3875e-06 deg
node 116.5265736749256 1.0429e-05 deg
peri 271.6406916008739 2.5253e-05 deg
M 61.06379585843622 2.3807e-05 deg
tp 2458431.418595598793
(2018-Nov-08.91859560)
6.589e-05 TDB
period 996.8149658686065
2.73
6.2639e-06
1.715e-08
d
yr
n .3611502759554804 2.2694e-09 deg/d
Q 2.172083332566529 9.0994e-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 = .863656 au 
 Jupiter MOID = 3.19448 au 
 T_jup = 3.777 
[ 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 15.3   n/a MPO412419  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin