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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1928926938664947 1.9584e-08  
a 3.95756153374399 2.754e-08 au
q 3.194176828357696 8.283e-08 au
i 3.50464443328642 6.1779e-07 deg
node 24.27236128491176 7.097e-06 deg
peri 341.7229936566794 8.9634e-06 deg
M 148.1920675730145 7.0586e-06 deg
tp 2458212.743442823655
(2018-Apr-04.24344282)
5.3555e-05 TDB
period 2875.675922218429
7.87
3.0017e-05
8.218e-08
d
yr
n .1251879591919661 1.3067e-09 deg/d
Q 4.720946239130286 3.2852e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2565  
   data-arc span      18127 days (49.63 yr)  
   first obs. used      1971-10-16  
   last obs. used      2021-06-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44193  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:32:01  

Additional Information
 Earth MOID = 2.19223 au 
 Jupiter MOID = .741203 au 
 T_jup = 3.023 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457089.5 (2015-Mar-08.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914256604424917 1.9612e-08  
q 3.195555031903273 8.2469e-08 au
tp 2458213.617445870837
(2018-Apr-05.11744587)
5.3862e-05 TDB
node 24.32750797030336 7.0956e-06 deg
peri 341.9907540127533 8.9883e-06 deg
i 3.50619833831752 6.1809e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2565  
   data-arc span      18127 days (49.63 yr)  
   first obs. used      1971-10-16  
   last obs. used      2021-06-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44193  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:32:01  

Additional Information
 Jupiter MOID = .741203 au 
 T_jup = 3.023 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.846240865681371E-16 -1.559585209511754E-15 -1.165815494700473E-13 3.63930695274532E-15 1.541311958946301E-14 1.421651635472808E-15
q -1.559585209511754E-15 6.801107079666017E-15 5.936620778218285E-13 -1.308292565825595E-14 -7.174752628001893E-14 -5.483294865255544E-15
tp -1.165815494700473E-13 5.936620778218285E-13 2.901151761734438E-9 1.103021104574323E-11 2.87906971853889E-10 -2.641714483919474E-13
node 3.63930695274532E-15 -1.308292565825595E-14 1.103021104574323E-11 5.034708655820154E-11 -4.807367121713889E-11 2.986991483296302E-12
peri 1.541311958946301E-14 -7.174752628001893E-14 2.87906971853889E-10 -4.807367121713889E-11 8.078974194360211E-11 -2.972327905467955E-12
i 1.421651635472808E-15 -5.483294865255544E-15 -2.641714483919474E-13 2.986991483296302E-12 -2.972327905467955E-12 3.820350622689825E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1917-Sep-16 17:37 00:01 Jupiter 1.7101707182762 1.71017020167027 1.71017123488213 4.0510507781866 3.92688702379623 2421488.233976449 1.38664648924918 23.8343757103964 7.02690980700186 -27.2312003274742 5200602.58421729 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
1940-Oct-18 17:02 00:02 Jupiter 1.78637206124096 1.78637167698905 1.78637244549297 4.59532575077916 4.4909578999966 2429921.209949685 1.55121310036643 31.8309458396709 10.3179253380256 -63.6269850654735 7301235.41496995 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
1963-Sep-27 15:41 00:01 Jupiter 1.82165255597589 1.82165231646533 1.82165279548644 4.87390039745744 4.77754701789738 2438300.153324054 1.3823305232575 38.9826944588185 10.9310750274376 -87.6707063950652 8256244.33333469 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
1986-Sep-02 13:24 < 00:01 Jupiter 1.78839785621598 1.78839758522386 1.7883981272081 4.62812650264188 4.52463404335897 2446676.058539896 0.95419086063651 26.7097295804147 10.8267049402698 76.6912396870885 7749138.36934755 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2009-Oct-05 06:55 < 00:01 Jupiter 1.70539926792586 1.70539902927811 1.70539950657362 4.08871328626439 3.96537944714039 2455109.788351325 0.287442901908186 10.6449052060495 9.83978399542464 -23.2654399459564 7753799.74961033 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2033-Mar-06 13:38 < 00:01 Jupiter 1.64159709689685 1.64159688154286 1.64159731225085 3.73771582658713 3.59702241743724 2463663.068291883 0.664418690422001 12.0353330717492 8.74533430224169 86.4595468606891 6909648.28160601 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2057-Jan-04 14:27 00:01 Jupiter 1.6298059176809 1.62980560106179 1.62980623430001 3.77237696095978 3.63199845110791 2472368.102428175 1.32737689189448 20.7169033661846 9.23755472338066 65.0055991764342 5892844.02373751 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2081-Feb-28 17:28 00:02 Jupiter 1.62862422123366 1.62862390874631 1.6286245337211 3.95008919287861 3.81615451292944 2481189.227696996 1.55767422819219 31.1281733192195 9.32887898664065 73.4223914959779 7187815.59050794 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2105-May-30 06:04 00:01 Jupiter 1.62449749194516 1.62449722036307 1.62449776352734 4.02975368986871 3.89821793668643 2490044.752661892 1.41235530808371 35.7501574442567 9.22933866631989 78.407689466993 8000549.67893007 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2129-Jul-16 01:27 00:01 Jupiter 1.59821818313291 1.59821787373774 1.59821849252817 3.92672327490228 3.7893531283369 2498857.560163483 1.10053269727686 31.4341437318161 11.5034691565765 76.2101422598776 6655261.7703726 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2153-May-03 07:42 00:01 Jupiter 1.61569202115445 1.61569155180662 1.61569249050228 3.9503572834534 3.81534109309988 2507549.820907880 1.00833112078754 29.7490989729399 20.362712925644 -88.3102045241362 3801228.19803822 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2176-Sep-20 12:13 00:01 Jupiter 1.69220431158023 1.69220375252419 1.69220487063627 4.24765449300827 4.12813286279031 2516091.008847289 1.18152332681089 34.5726628435612 22.4987195933255 -65.9773348176904 3433855.34826701 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33
2199-Oct-15 23:49 00:01 Jupiter 1.78082305684698 1.78082262788862 1.78082348580533 4.5478335143278 4.44201742982991 2524516.492518465 1.21112649769094 25.9782999825275 18.7941951606292 -71.5107607472248 4628977.44461288 T 39 CATAB v2.0g-lin.ifort 2021-Jul-07 22:33:30 2021-Jul-07 22:33

Alternate Designations
 1971 UJ = 1979 WH8 = 1981 AG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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