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6608 Davidecrespi (1991 VC4)
Classification: Main-belt Asteroid          SPK-ID: 2006608
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921875128440682 5.3954e-08  
a 2.450895816760108 1.3709e-08 AU
q 1.979864245497052 1.3475e-07 AU
i 11.11789370313553 6.0148e-06 deg
node 222.054952428458 3.1701e-05 deg
peri 194.94651187361 3.6183e-05 deg
M 345.556044953194 1.889e-05 deg
tp 2457056.730161396518
(2015-Feb-03.23016140)
7.366e-05 JED
period 1401.476121820441
3.84
1.1759e-05
3.219e-08
d
yr
n .2568720182919561 2.1553e-09 deg/d
Q 2.921927388023164 1.6344e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      22218 days (60.83 yr)  
   first obs. used      1953-12-29  
   last obs. used      2014-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53426  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:02:13  

Additional Information
 Earth MOID = .992899 AU 
 T_jup = 3.445 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO265993  
rotation period rot_per 20. h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2010) http://www.asu.cas.cz/~ppravec/neo.htm]

6608 Davidecrespi           Discovered 1991 Nov. 2 by E. F. Helin at Palomar.
Italian amateur astronomer Davide Crespi (b. 1970) is an assiduous observer of minor planets from Suno Observatory in Novara. The name was suggested by S. Foglia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

Alternate Designations
 1991 VC4 = 1980 XH 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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