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13923 Peterhof (1985 UA5)
Classification: Main-belt Asteroid          SPK-ID: 2013923
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 .2063739983269141 8.2755e-08  
a 2.667619621198978 2.0684e-08 AU
q 2.117092293956817 2.2392e-07 AU
i 15.46262998060624 9.1859e-06 deg
node 58.92347504783359 2.3173e-05 deg
peri 337.3642129726018 2.7452e-05 deg
M 249.5633098260089 1.806e-05 deg
tp 2457488.697063720759
(2016-Apr-10.19706372)
8.3208e-05 JED
period 1591.418057373694
4.36
1.8509e-05
5.067e-08
d
yr
n .2262133437106435 2.631e-09 deg/d
Q 3.218146948441139 2.4952e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      914  
   data-arc span      10476 days (28.68 yr)  
   first obs. used      1985-10-22  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48032  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:26:23  

Additional Information
 Earth MOID = 1.13295 AU 
 T_jup = 3.301 
[ 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 12.6 mag n/a MPO263473  

13923 Peterhof           Discovered 1985 Oct. 22 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Peterhof, celebrating its 300th anniversary in 2005, was founded near St. Petersburg as a royal seaside summer residence. It later acquired worldwide fame for its fundamental unity of architecture, gardens and engineering arts. Nowadays, the town of Peterhof is a developing scientific and educational center.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1985 UA5 = 1998 VO16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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