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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2585380508486814 3.8105e-08  
a 2.560204602770739 1.0216e-08 au
q 1.89829429499657 9.5327e-08 au
i 12.27361818122908 3.8568e-06 deg
node 217.8841392806123 1.9965e-05 deg
peri 206.1465582328275 2.1571e-05 deg
M 332.8369633966726 1.0263e-05 deg
tp 2459113.398001970452
(2020-Sep-20.89800197)
4.2903e-05 TDB
period 1496.271617304531
4.10
8.9561e-06
2.452e-08
d
yr
n .2405980276819823 1.4401e-09 deg/d
Q 3.222114910544909 1.2858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2080  
   data-arc span      16376 days (44.84 yr)  
   first obs. used      1975-12-31  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43332  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:59:33  

Additional Information
 Earth MOID = .918269 au 
 Jupiter MOID = 2.16119 au 
 T_jup = 3.357 
[ 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 12.9   n/a MPO452332  
diameter diameter 6.833 km 0.600 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.179 h n/a LCDB (Rev. 2019-August); 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 Bull. 41, 2-3.]
geometric albedo albedo 0.287   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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