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3514 Hooke (1971 UJ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003514
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1926760317662683 1.9706e-08  
a 3.957996970000648 2.7598e-08 au
q 3.195385820078009 8.3475e-08 au
i 3.504227783140008 6.1796e-07 deg
node 24.28039497336859 7.101e-06 deg
peri 341.7026112654151 8.9763e-06 deg
M 123.6907075171316 6.984e-06 deg
tp 2458212.296959209005
(2018-Apr-03.79695921)
5.3624e-05 TDB
period 2876.150535685836
7.87
3.0082e-05
8.236e-08
d
yr
n .125167301062062 1.3091e-09 deg/d
Q 4.720608119923287 3.2915e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2478  
   data-arc span      18054 days (49.43 yr)  
   first obs. used      1971-10-16  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44131  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:02:10  

Additional Information
 Earth MOID = 2.19271 au 
 Jupiter MOID = .740853 au 
 T_jup = 3.023 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457053.5 (2015-Jan-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914512696229313 1.9748e-08  
q 3.195331478923245 8.3209e-08 au
tp 2458213.667543758303
(2018-Apr-05.16754376)
5.3856e-05 TDB
node 24.32776548351972 7.0978e-06 deg
peri 342.0022222484907 8.9943e-06 deg
i 3.506313121711237 6.1836e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2478  
   data-arc span      18054 days (49.43 yr)  
   first obs. used      1971-10-16  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44131  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:02:10  

Additional Information
 Jupiter MOID = .740853 au 
 T_jup = 3.023 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.899911634995655E-16 -1.585249444025396E-15 -1.152041026042826E-13 3.777020146134802E-15 1.610693169970124E-14 1.43368972023368E-15
q -1.585249444025396E-15 6.923661763755461E-15 5.869813610134919E-13 -1.373544921088764E-14 -7.508093793940081E-14 -5.539756981033631E-15
tp -1.152041026042826E-13 5.869813610134919E-13 2.900479294005169E-9 1.105617604791441E-11 2.879784986041726E-10 -2.616364843390774E-13
node 3.777020146134802E-15 -1.373544921088764E-14 1.105617604791441E-11 5.037906921377204E-11 -4.808582285745749E-11 2.990268678555177E-12
peri 1.610693169970124E-14 -7.508093793940081E-14 2.879784986041726E-10 -4.808582285745749E-11 8.089816006509323E-11 -2.973874102202978E-12
i 1.43368972023368E-15 -5.539756981033631E-15 -2.616364843390774E-13 2.990268678555177E-12 -2.973874102202978E-12 3.823640573216857E-13

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 11.80   n/a MPCxxxxx  
diameter diameter 22.039 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 4.307 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Dahlgren, M.; Lahulla, J.F.; Lagerkvist, C.-I.; Lagerros, J.; et al. (1998) Icarus 133, 247-285.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 161-163.]
geometric albedo albedo 0.084   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

3514 Hooke           Discovered 1971 Oct. 26 by L. Kohoutek at Bergedorf.
English experimental scientist Robert Hooke (1635-1703) is known for his law of elasticity, the spring balance, an escapement for clocks and a Universal Joint commonly used at the end of a propeller shaft. The name was suggested for this specific minor planet by D. Bowater in the BBC Word of Mouth competition.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1971 UJ = 1979 WH8 = 1981 AG3 
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