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11476 Stefanosimoni (1984 HH1)
Classification: Main-belt Asteroid          SPK-ID: 2011476
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976026907467666 4.5872e-08  
a 2.342386434778015 1.301e-08 AU
q 1.879524572497153 1.0834e-07 AU
i 2.446320641576664 5.096e-06 deg
node 166.5718636424837 0.00011472 deg
peri 83.77922550501175 0.00011556 deg
M 169.4788189270469 1.6621e-05 deg
tp 2456384.048134242100
(2013-Apr-01.54813424)
5.7335e-05 JED
period 1309.441929545024
3.59
1.0909e-05
2.987e-08
d
yr
n .2749262810952485 2.2904e-09 deg/d
Q 2.805248297058876 1.5581e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1058  
   data-arc span      11253 days (30.81 yr)  
   first obs. used      1984-04-23  
   last obs. used      2015-02-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52999  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:27:04  

Additional Information
 Earth MOID = .86896 AU 
 T_jup = 3.536 
[ 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 14.7 mag n/a MPO319229  

11476 Stefanosimoni           Discovered 1984 Apr. 23 by V. Zappala at the European Southern Observatory.
Stefano Simoni (b. 1974) is an Italian amateur astronomer. He created and maintains a very popular non-profit Italian blog devoted to the dissemination of astronomy and astrophysics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121029/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1984 HH1 = 1991 EV8 = 1998 CT4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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