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 ]  
46261 (2001 HA47)
Classification: Main-belt Asteroid          SPK-ID: 2046261
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05541460331393957 3.4933e-08  
a 2.572262967819703 1.2324e-08 au
q 2.429722035838838 9.1409e-08 au
i 14.54134226512381 5.1613e-06 deg
node 236.1075499493834 1.3454e-05 deg
peri 61.40838418682195 4.8274e-05 deg
M 36.73012464471492 4.5765e-05 deg
tp 2458446.758407157337
(2018-Nov-24.25840716)
0.00019157 TDB
period 1506.855039527412
4.13
1.0829e-05
2.965e-08
d
yr
n .2389081833066737 1.717e-09 deg/d
Q 2.714803899800569 1.3007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1334  
   data-arc span      7738 days (21.19 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50655  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:26:21  

Additional Information
 Earth MOID = 1.44426 au 
 Jupiter MOID = 2.38243 au 
 T_jup = 3.382 
[ 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 14.2   n/a MPO449293  
rotation period rot_per 4.774 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

46261 (2001 HA47)          Discovered 2001-Apr-18 by JPL/NEAT at Haleakala
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 HA47 = 1998 QH82 = 2000 AT173 
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