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7007 Timjull (1981 EK34)
Classification: Main-belt Asteroid          SPK-ID: 2007007
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1546158559970771 3.1831e-08  
a 2.402291717556453 8.1979e-09 au
q 2.030859327291774 7.4052e-08 au
i .7265288074630785 3.7786e-06 deg
node 349.2102028161789 0.00026811 deg
peri 264.1060974144534 0.00026845 deg
M 236.2869420227669 1.4758e-05 deg
tp 2459863.858433657660
(2022-Oct-11.35843366)
5.6715e-05 TDB
period 1359.994157995194
3.72
6.9616e-06
1.906e-08
d
yr
n .264707019426235 1.355e-09 deg/d
Q 2.773724107821133 9.4655e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      15559 days (42.60 yr)  
   first obs. used      1978-07-09  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52421  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:19:11  

Additional Information
 Earth MOID = 1.0166 au 
 Jupiter MOID = 2.26503 au 
 T_jup = 3.508 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457210.5 (2015-Jul-07.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1545981247352706 3.1821e-08  
q 2.030602269551042 7.4022e-08 au
tp 2457145.072020503190
(2015-May-02.57202050)
5.2432e-05 TDB
node 349.3056546559021 0.00026794 deg
peri 264.178266384341 0.00026827 deg
i .727079055178746 3.7782e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      15559 days (42.60 yr)  
   first obs. used      1978-07-09  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52421  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:19:11  

Additional Information
 Jupiter MOID = 2.26503 au 
 T_jup = 3.508 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.012579647498681E-15 -2.346664500795738E-15 4.891471774654061E-13 -3.14035561100742E-15 1.175308901500636E-13 5.184140387559702E-17
q -2.346664500795738E-15 5.479301025934737E-15 -1.110399948241343E-12 7.442128250282614E-15 -2.665775190946152E-13 -1.395063541654195E-16
tp 4.891471774654061E-13 -1.110399948241343E-12 2.749090427461219E-9 -9.098982636049816E-12 7.14066521976539E-10 -1.226474175620389E-14
node -3.14035561100742E-15 7.442128250282614E-15 -9.098982636049816E-12 7.179015788021496E-8 -7.178611988830873E-8 -2.074334289990558E-10
peri 1.175308901500636E-13 -2.665775190946152E-13 7.14066521976539E-10 -7.178611988830873E-8 7.196941364992709E-8 2.074068774532415E-10
i 5.184140387559702E-17 -1.395063541654195E-16 -1.226474175620389E-14 -2.074334289990558E-10 2.074068774532415E-10 1.427477737797797E-11

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 15.07   n/a E2021B10  
rotation period rot_per 3.551 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

7007 Timjull           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
A. J. Timothy Jull (b. 1951) is a senior research scientist at the University of Arizona. In addition to running a world-class laboratory for the measurement of terrestrial ages of meteorites, he is the editor of the journal Meteoritics and Planetary Science.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

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