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 ]  
266677 (2009 HG71)
Classification: Main-belt Asteroid          SPK-ID: 2266677
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1735206144751306 4.5304e-08  
a 2.264657930406569 1.3169e-08 au
q 1.871693094746443 1.0024e-07 au
i 4.030815907324413 7.4783e-06 deg
node 194.9684061473969 6.1943e-05 deg
peri 110.7867762368348 6.5418e-05 deg
M 138.259834634763 2.1867e-05 deg
tp 2458918.425171508223
(2020-Mar-09.92517151)
7.3774e-05 TDB
period 1244.807927853303
3.41
1.0858e-05
2.973e-08
d
yr
n .2892012429747514 2.5225e-09 deg/d
Q 2.657622766066694 1.5454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      6225 days (17.04 yr)  
   first obs. used      2003-10-21  
   last obs. used      2020-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55582  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:16:48  

Additional Information
 Earth MOID = .860959 au 
 Jupiter MOID = 2.58441 au 
 T_jup = 3.594 
[ 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 17.8   n/a MPO433731  

266677 (2009 HG71)          Discovered 2009-Apr-22 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-28 10:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin