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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1922648466307693 5.4036e-08  
a 2.451269091818865 1.6974e-08 AU
q 1.979976215829566 1.3485e-07 AU
i 11.1172630746775 6.14e-06 deg
node 222.0580640164463 3.4487e-05 deg
peri 194.9105516318572 4.0183e-05 deg
M 294.2193587228147 2.4694e-05 deg
tp 2457056.641832887571
(2015-Feb-03.14183289)
9.7586e-05 JED
period 1401.796304340789
3.84
1.456e-05
3.986e-08
d
yr
n .2568133464792478 2.6675e-09 deg/d
Q 2.922561967808164 2.0238e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      22101 days (60.51 yr)  
   first obs. used      1953-12-29  
   last obs. used      2014-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54041  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:14:52  

Additional Information
 Earth MOID = .992248 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. 2013-Sep-12) 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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