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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1929862619624985 4.7293e-08  
a 2.451265435094057 1.1653e-08 au
q 1.978204881697378 1.1651e-07 au
i 11.126056615442 5.6683e-06 deg
node 221.995186197214 2.6402e-05 deg
peri 195.0622798138379 3.0768e-05 deg
M 139.5232176771884 1.5831e-05 deg
tp 2457057.214740936680
(2015-Feb-03.71474094)
6.1162e-05 JED
period 1401.79316760964
3.84
9.9961e-06
2.737e-08
d
yr
n .2568139211392204 1.8313e-09 deg/d
Q 2.924325988490736 1.3902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1325  
   data-arc span      22753 days (62.29 yr)  
   first obs. used      1953-12-29  
   last obs. used      2016-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51772  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:56:22  

Additional Information
 Earth MOID = .990066 au 
 Jupiter MOID = 2.45093 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. 2016-February); 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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