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 ]  
214444 (2005 RH4)
Classification: Main-belt Asteroid          SPK-ID: 2214444
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357412889580251 8.1671e-08  
a 3.110094166668708 3.8901e-08 au
q 2.687925975704263 2.5989e-07 au
i 5.108852018979007 1.0656e-05 deg
node 187.1287883438561 7.8195e-05 deg
peri 133.0979349842953 8.4976e-05 deg
M 212.3833778536608 3.3761e-05 deg
tp 2459421.969602362099
(2021-Jul-26.46960236)
0.00019229 TDB
period 2003.358785416358
5.48
3.7587e-05
1.029e-07
d
yr
n .1796982161261649 3.3715e-09 deg/d
Q 3.532262357633154 4.4181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      6668 days (18.26 yr)  
   first obs. used      2000-11-26  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59685  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:32:55  

Additional Information
 Earth MOID = 1.67776 au 
 Jupiter MOID = 1.80574 au 
 T_jup = 3.199 
[ 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 MPO291586  

214444 (2005 RH4)          Discovered 2005-Sep-04 by Bickel, W. at Bergisch Gladbach
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2005 RH4 = 2000 WC28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-05 16:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin