Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
3579 Rockholt (1977 YA)
Classification: Main-belt Asteroid          SPK-ID: 2003579
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3572611609980718 6.5337e-08  
a 2.733382790664159 1.6348e-08 AU
q 1.756851281419332 1.7869e-07 AU
i 31.06469360982027 1.7759e-05 deg
node 14.59978889282295 1.7826e-05 deg
peri 108.6740520628397 3.1914e-05 deg
M 6.562465483582359 2.0868e-05 deg
tp 2456770.410592087635
(2014-Apr-22.91059209)
9.5568e-05 JED
period 1650.627630050144
4.52
1.4808e-05
4.054e-08
d
yr
n .2180988573352935 1.9566e-09 deg/d
Q 3.709914299908986 2.2189e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      13193 days (36.12 yr)  
   first obs. used      1977-12-18  
   last obs. used      2014-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55108  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 17:57:58  

Additional Information
 Earth MOID = .950425 AU 
 T_jup = 3.063 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO267721  
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3579 Rockholt           Discovered 1977 Dec. 18 by M. Lovas at Piszkesteto.
The lifelong affection of Ronald Rockholt Sr. (b. 1928) for the stars led him to pursuits in aviation, rocketry, telescope making and astronomy. Most importantly, he is recognized for inspiring two generations of rural California students to love science through his innovative, hands-on teaching. The name was suggested by K. Beatty.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-24 05:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin