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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1925213114755367 5.3647e-08  
a 2.451995480505353 1.2642e-08 au
q 1.979934094866374 1.3387e-07 au
i 11.1189798593676 5.9281e-06 deg
node 222.0208879039459 2.8006e-05 deg
peri 195.083943827928 3.2534e-05 deg
M 88.16135107021202 1.6226e-05 deg
tp 2457057.057796998516
(2015-Feb-03.55779700)
6.2988e-05 JED
period 1402.419445478637
3.84
1.0846e-05
2.969e-08
d
yr
n .2566992358531753 1.9852e-09 deg/d
Q 2.924056866144333 1.5076e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1199  
   data-arc span      22351 days (61.19 yr)  
   first obs. used      1953-12-29  
   last obs. used      2015-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5209  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:31:05  

Additional Information
 Earth MOID = .992314 au 
 Jupiter MOID = 2.45256 au 
 T_jup = 3.444 
[ 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 13.4 mag n/a MPO319167  
rotation period rot_per 20. h n/a LCDB (Rev. 2015-December); Warner et al., 2009 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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