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JPL Small-Body Database Browser
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77755 Delemont (2001 PW13)
Classification: Main-belt Asteroid          SPK-ID: 2077755
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03860520112297112 4.1919e-08  
a 3.060475397945936 2.5124e-08 au
q 2.942325129676328 1.2617e-07 au
i 11.57413960237424 4.6714e-06 deg
node 146.2361025232243 2.3978e-05 deg
peri 1.833266173042692 6.8535e-05 deg
M 287.2712991103251 6.4065e-05 deg
tp 2458995.580045637730
(2020-May-26.08004564)
0.00034874 TDB
period 1955.607823180226
5.35
2.4081e-05
6.593e-08
d
yr
n .1840859888842974 2.2668e-09 deg/d
Q 3.178625666215544 2.6094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      755  
   data-arc span      9949 days (27.24 yr)  
   first obs. used      1991-10-07  
   last obs. used      2019-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59679  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:18:33  

Additional Information
 Earth MOID = 1.9543 au 
 Jupiter MOID = 1.81832 au 
 T_jup = 3.202 
[ 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 14.5   n/a MPO426476  
diameter diameter 4.283 km 0.537 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.153   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

77755 Delémont           Discovered 2001 Aug. 13 at Vicques.
The city of Delémont is the capital of Jura, situated 50 km southwest of Basel. In 1289 the bishop of Basel, Pierre Reich of Rechenstein, gave it the status of a city. In the middle of the nineteenth century, the valley of Delémont was the Swiss industrial center for iron and steel with about two thousand workers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040928/MPCPages.arcLast Updated: 2004-09-28

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