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 ]  
305974 (2009 HS85)
Classification: Main-belt Asteroid          SPK-ID: 2305974
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 .1306616743824628 1.4609e-07  
a 2.625938201173846 4.6958e-08 au
q 2.282828718983598 4.151e-07 au
i 8.938030631795765 8.9862e-06 deg
node 188.5644601688874 3.637e-05 deg
peri 337.0829240020386 4.2738e-05 deg
M 161.1898688408319 2.3622e-05 deg
tp 2457904.578234208623
(2017-May-31.07823421)
9.3666e-05 TDB
period 1554.265398232224
4.26
4.1691e-05
1.141e-07
d
yr
n .2316206745704134 6.2128e-09 deg/d
Q 2.969047683364093 5.3093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      6203 days (16.98 yr)  
   first obs. used      2002-10-05  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58628  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:51  

Additional Information
 Earth MOID = 1.29252 au 
 Jupiter MOID = 2.01392 au 
 T_jup = 3.373 
[ 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 16.9   n/a MPO260603  

305974 (2009 HS85)          Discovered 2009-Apr-29 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ 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
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin