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

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .257540250211672 4.961e-08  
a 2.561316346952367 1.6925e-08 au
q 1.901674294087009 1.2331e-07 au
i 12.28518925888272 5.616e-06 deg
node 217.9655725323056 2.5897e-05 deg
peri 205.2997995316761 2.9651e-05 deg
M 357.3428184494222 2.0605e-05 deg
tp 2457611.551264830828
(2016-Aug-11.05126483)
8.5773e-05 JED
period 1497.246335401122
4.10
1.484e-05
4.063e-08
d
yr
n .2404413966413574 2.3832e-09 deg/d
Q 3.220958399817725 2.1284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1188  
   data-arc span      14580 days (39.92 yr)  
   first obs. used      1975-12-31  
   last obs. used      2015-12-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46464  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:17:47  

Additional Information
 Earth MOID = .919446 au 
 Jupiter MOID = 2.16529 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 LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hill, K. (2014) Minor Planet Bul. 41, 2-3.]

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 ]
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