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13962 Delambre (1991 PO4)
Classification: Main-belt Asteroid          SPK-ID: 2013962
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1859642178767658 6.2086e-08  
a 3.186123172282609 2.9318e-08 AU
q 2.593618268490034 2.0378e-07 AU
i 2.073610494105319 7.1146e-06 deg
node 154.6970749631253 0.00015112 deg
peri 230.4994907170357 0.00015234 deg
M 351.5821813945279 1.6107e-05 deg
tp 2457049.072374051076
(2015-Jan-26.57237405)
9.302e-05 JED
period 2077.266745451185
5.69
2.8672e-05
7.85e-08
d
yr
n .1733046566062499 2.3921e-09 deg/d
Q 3.778628076075185 3.477e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      16425 days (44.97 yr)  
   first obs. used      1969-10-14  
   last obs. used      2014-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52747  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:26:29  

Additional Information
 Earth MOID = 1.59804 AU 
 T_jup = 3.170 
[ 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 13.0 mag n/a PDS3 (MPC 39040)  

13962 Delambre           Discovered 1991 Aug. 3 by E. W. Elst at the European Southern Observatory.
French astronomer Jean Baptiste Joseph Delambre (1749-1822) observed the 1796 transit of Mercury, although his colleagues had given up the task due to cloudy weather. In June 1792 he started the measurement of the Dunkerque-Rodez sector of the meridian to Barcelona using triangulation points around Paris.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

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Alternate Designations
 1991 PO4 = 1969 TU4 = 1975 VG1 = 1986 TH13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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