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
JPL Small-Body Database Browser
Search: [ help ]  
72864 (2001 HD54)
Classification: Main-belt Asteroid          SPK-ID: 2072864
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1714433147392878 2.2417e-08  
a 2.683532428151282 1.4678e-08 au
q 2.223458733458657 5.8722e-08 au
i 27.6719056250095 1.372e-06 deg
node 98.2691838480785 1.1205e-06 deg
peri 288.9944554229818 6.4481e-06 deg
M 16.85595015130602 5.8887e-06 deg
tp 2459125.318768400154
(2020-Oct-02.81876840)
2.6218e-05 TDB
period 1605.678892794276
4.40
1.3173e-05
3.607e-08
d
yr
n .2242042301331566 1.8394e-09 deg/d
Q 3.143606122843908 1.7194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1704  
   data-arc span      8074 days (22.11 yr)  
   first obs. used      1999-01-31  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45673  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:04:29  

Additional Information
 Earth MOID = 1.36072 au 
 Jupiter MOID = 2.42868 au 
 T_jup = 3.192 
[ 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 13.84   n/a MPCxxxxx  
diameter diameter 9.004 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

72864 (2001 HD54)          Discovered 2001-Apr-24 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-18 02:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin