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 ]  
300265 (2007 HF81)
Classification: Main-belt Asteroid          SPK-ID: 2300265
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1753836272162459 5.8573e-08  
a 2.187950682642945 1.7009e-08 au
q 1.804219955750764 1.3124e-07 au
i 2.289729096982544 4.3673e-06 deg
node 34.75915071446082 0.00018432 deg
peri 311.7243021569845 0.00018505 deg
M 136.7480316994073 2.0199e-05 deg
tp 2458151.472124229605
(2018-Feb-01.97212423)
6.2871e-05 TDB
period 1182.101367518571
3.24
1.3784e-05
3.774e-08
d
yr
n .3045424105681397 3.5513e-09 deg/d
Q 2.571681409535126 1.9992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      9035 days (24.74 yr)  
   first obs. used      1994-04-15  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65602  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:37:39  

Additional Information
 Earth MOID = .797347 au 
 Jupiter MOID = 2.83173 au 
 T_jup = 3.654 
[ 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 18.0   n/a MPO368055  

300265 (2007 HF81)          Discovered 2007-Apr-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

[ show close-approach data ]
Alternate Designations
 2007 HF81 = 2007 GX75 = 2008 UE229 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin