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 ]  
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1738831747872031 5.7712e-08  
a 2.26421432503385 1.9749e-08 au
q 1.8705055497983 1.369e-07 au
i 4.031559525956815 7.8708e-06 deg
node 195.0009510878615 7.6651e-05 deg
peri 110.8516996023541 7.9605e-05 deg
M 267.9470976704595 2.118e-05 deg
tp 2458918.706987871331
(2020-Mar-10.20698787)
7.4766e-05 TDB
period 1244.442192855419
3.41
1.6282e-05
4.458e-08
d
yr
n .289286237694952 3.7849e-09 deg/d
Q 2.657923100269399 2.3183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      5665 days (15.51 yr)  
   first obs. used      2003-10-21  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59364  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:45:32  

Additional Information
 Earth MOID = .859533 au 
 Jupiter MOID = 2.58464 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 2019-Dec-14 00:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin