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 ]  
11441 Anadiego (1975 YD)
Classification: Main-belt Asteroid          SPK-ID: 2011441
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2580277337223953 5.6252e-08  
a 2.561000705843779 1.6802e-08 AU
q 1.900191497653454 1.4095e-07 AU
i 12.28679350764422 6.9869e-06 deg
node 217.9867941872185 3.4824e-05 deg
peri 205.2923973410928 3.9224e-05 deg
M 165.0183884165126 2.2713e-05 deg
tp 2456114.312480457374
(2012-Jul-05.81248046)
9.0514e-05 JED
period 1496.969576577361
4.10
1.4732e-05
4.033e-08
d
yr
n .2404858493003554 2.3666e-09 deg/d
Q 3.221809914034104 2.1137e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1016  
   data-arc span      13978 days (38.27 yr)  
   first obs. used      1975-12-31  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51963  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:00:26  

Additional Information
 Earth MOID = .918509 AU 
 T_jup = 3.356 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a PDS3 (MPC 35817)  
rotation period rot_per 3.179 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hills, K. (2013) Posting on CALL web site: http://www.MinorPlanet.info/call.html]

11441 Anadiego           Discovered 1975 Dec. 31 by M. R. Cesco at El Leoncito.
Ana Teresa Diego (1954-1976?) was an outstanding undergraduate student at La Plata Astronomical Observatory in the 1970s. She was also a person with a strong social commitment who gave her life for the defense of freedom.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 1975 YD = 1989 GA2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-18 08:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin