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 ]  
312574 (2009 HR65)
Classification: Main-belt Asteroid          SPK-ID: 2312574
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08846117389918126 9.1886e-08  
a 2.811126905252999 4.4782e-08 au
q 2.562451319234746 2.4654e-07 au
i 11.61117773478541 1.0773e-05 deg
node 69.03434052651966 4.8772e-05 deg
peri 163.7273446475737 7.9916e-05 deg
M 120.2117635723151 6.0732e-05 deg
tp 2458425.638038604982
(2018-Nov-03.13803860)
0.00029201 TDB
period 1721.547874786084
4.71
4.1137e-05
1.126e-07
d
yr
n .2091141380803788 4.9969e-09 deg/d
Q 3.059802491271252 4.8744e-08 au
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      5559 days (15.22 yr)  
   first obs. used      2004-04-12  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55501  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:03  

Additional Information
 Earth MOID = 1.55266 au 
 Jupiter MOID = 1.94898 au 
 T_jup = 3.285 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456732.5 (2014-Mar-16.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0872773797683931 9.2045e-08  
q 2.567125089460812 2.472e-07 au
tp 2456707.298297206740
(2014-Feb-18.79829721)
0.0003045 TDB
node 69.06833096993918 4.8767e-05 deg
peri 164.7781367911067 8.0415e-05 deg
i 11.61048309123801 1.0769e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      68  
   data-arc span      5559 days (15.22 yr)  
   first obs. used      2004-04-12  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55501  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:03  

Additional Information
 Jupiter MOID = 1.94898 au 
 T_jup = 3.285 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.472356219473528E-15 -2.247433918138623E-14 1.649629305325383E-12 -8.646924847223888E-15 2.620419525081016E-13 -4.438479050831789E-15
q -2.247433918138623E-14 6.110549559194829E-14 -8.338088947168763E-12 4.197065559796873E-14 -1.534667827382875E-12 1.764436635493081E-14
tp 1.649629305325383E-12 -8.338088947168763E-12 9.271959751260574E-8 2.479326005121963E-11 1.957920319066125E-8 -1.954648747391704E-11
node -8.646924847223888E-15 4.197065559796873E-14 2.479326005121963E-11 2.378191069126662E-9 -2.323027710193594E-9 1.043528613458534E-10
peri 2.620419525081016E-13 -1.534667827382875E-12 1.957920319066125E-8 -2.323027710193594E-9 6.466605694220149E-9 -1.058931918035948E-10
i -4.438479050831789E-15 1.764436635493081E-14 -1.954648747391704E-11 1.043528613458534E-10 -1.058931918035948E-10 1.159608726124509E-10

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 16.5   n/a MPO476404  

312574 (2009 HR65)          Discovered 2009-Apr-23 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ 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 2020-Feb-24 00:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin