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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1855896234458412 4.9022e-08  
a 3.186800171249749 2.404e-08 au
q 2.595363127470366 1.5572e-07 au
i 2.073834633839524 5.8482e-06 deg
node 154.6959071956855 0.00013163 deg
peri 230.6612507014698 0.00013298 deg
M 95.44927923385248 1.4745e-05 deg
tp 2457049.564411589804
(2015-Jan-27.06441159)
8.5463e-05 JED
period 2077.928858338906
5.69
2.3513e-05
6.438e-08
d
yr
n .1732494346739973 1.9604e-09 deg/d
Q 3.778237215029133 2.8502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1327  
   data-arc span      16977 days (46.48 yr)  
   first obs. used      1969-10-14  
   last obs. used      2016-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51931  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:18:04  

Additional Information
 Earth MOID = 1.59864 au 
 Jupiter MOID = 1.67163 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 13.1 mag n/a MPO350914  

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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