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 ]  
215775 (2004 HF6)
Classification: Main-belt Asteroid          SPK-ID: 2215775
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 .3931999737885541 5.0585e-08  
a 2.998421622306936 3.053e-08 au
q 1.819442319008815 1.4217e-07 au
i 8.177318216896644 1.0605e-05 deg
node 206.6766653909259 3.5166e-05 deg
peri 93.97802140140664 3.9696e-05 deg
M 284.8248192393096 2.0285e-05 deg
tp 2458996.513014443428
(2020-May-27.01301444)
0.00011171 TDB
period 1896.432888581521
5.19
2.8965e-05
7.93e-08
d
yr
n .1898300763330834 2.8993e-09 deg/d
Q 4.177400925605057 4.2535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      7223 days (19.78 yr)  
   first obs. used      1999-07-22  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56972  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:33:53  

Additional Information
 Earth MOID = .826108 au 
 Jupiter MOID = 1.28224 au 
 T_jup = 3.117 
[ 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 15.8   n/a MPO348583  
diameter diameter 4.546 km 0.543 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.054   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

215775 (2004 HF6)          Discovered 2004-Apr-17 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2004 HF6 = 1999 RN99 
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