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 ]  
379875 (2012 HP39)
Classification: Main-belt Asteroid          SPK-ID: 2379875
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3912168312593709 5.4908e-08  
a 3.098696396941758 3.9496e-08 au
q 1.886434211495373 1.5739e-07 au
i 14.96205881807471 1.4987e-05 deg
node 5.010650722406382 2.1741e-05 deg
peri 273.3917633793029 3.0443e-05 deg
M 74.07489952090344 1.6432e-05 deg
tp 2458190.545613324480
(2018-Mar-13.04561332)
8.7645e-05 TDB
period 1992.356117358489
5.45
3.8092e-05
1.043e-07
d
yr
n .1806905888277123 3.4546e-09 deg/d
Q 4.310958582388142 5.4947e-08 au
  Orbit Determination Parameters
   # obs. used (total)      170  
   data-arc span      6833 days (18.71 yr)  
   first obs. used      2001-03-04  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62525  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 21:14:27  

Additional Information
 Earth MOID = .940954 au 
 Jupiter MOID = 1.50374 au 
 T_jup = 3.051 
[ 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 16.3   n/a MPO402526  

379875 (2012 HP39)          Discovered 2007-Jul-19 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2012 HP39 = 2007 RT150 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 17:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin