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1013 Tombecka (A924 BL)
Classification: Main-belt Asteroid          SPK-ID: 2001013
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2092060482395935 3.4261e-08  
a 2.683478698263969 9.5697e-09 au
q 2.122078724265035 9.2654e-08 au
i 11.8986909483923 4.6647e-06 deg
node 27.23914450356152 1.8296e-05 deg
peri 99.75498953106599 2.1572e-05 deg
M 319.5900361360993 1.2765e-05 deg
tp 2459180.731881481410
(2020-Nov-27.23188148)
5.7469e-05 TDB
period 1605.630669501039
4.40
8.5889e-06
2.352e-08
d
yr
n .2242109638525231 1.1994e-09 deg/d
Q 3.244878672262902 1.1572e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2449  
   data-arc span      41740 days (114.28 yr)  
   first obs. used      1905-10-25  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:43:22  

Additional Information
 Earth MOID = 1.17437 au 
 Jupiter MOID = 1.93875 au 
 T_jup = 3.313 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456249.5 (2012-Nov-18.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2079577151890684 3.4425e-08  
q 2.126011163435073 9.3024e-08 au
tp 2455969.389281537254
(2012-Feb-11.88928154)
5.0321e-05 TDB
node 27.28395415762876 1.8288e-05 deg
peri 99.86882575247786 2.1583e-05 deg
i 11.89992228247476 4.6645e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2449  
   data-arc span      41740 days (114.28 yr)  
   first obs. used      1905-10-25  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40127  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:43:22  

Additional Information
 Jupiter MOID = 1.93875 au 
 T_jup = 3.313 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.185109127903016E-15 -3.191687420404522E-15 4.196321276260555E-14 2.042996486204896E-15 4.352673905434697E-14 -2.1602159264218E-16
q -3.191687420404522E-15 8.653431396541232E-15 -3.566384241481345E-15 -7.032161619392221E-15 -9.303727108390085E-14 2.425218303442863E-16
tp 4.196321276260555E-14 -3.566384241481345E-15 2.532213258206889E-9 -7.89504939235568E-12 5.874568357549758E-10 2.205317407723076E-12
node 2.042996486204896E-15 -7.032161619392221E-15 -7.89504939235568E-12 3.344428808324042E-10 -3.287316496783342E-10 -3.908910689656754E-12
peri 4.352673905434697E-14 -9.303727108390085E-14 5.874568357549758E-10 -3.287316496783342E-10 4.65840779184876E-10 4.169994599418455E-12
i -2.1602159264218E-16 2.425218303442863E-16 2.205317407723076E-12 -3.908910689656754E-12 4.169994599418455E-12 2.175719894668644E-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 10.2   n/a MPO502162 IRAS observations used: 11
diameter diameter 34.613 km 0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.053 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1990) Icarus 86, 402-447.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J. (2006) IAU 2006, poster paper.]
[Fauerbach, M.; Marks, S.A.; Lucas, M.P. (2008) Minor Planet Bull. 35, 44-46.]
[Aznar, A.; Garceran, A.C.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 174-181.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Hanus, J.; Delbo, M.; Durech, J.; Ali-Lagoa, V. (2018) Icarus 309, 297-337.]
geometric albedo albedo 0.132   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.755   0.053 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=16.35, mean=20.83, max.=25.32) deg.
U-B UB 0.370   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=16.35, mean=20.83, max.=25.32) deg.
Tholen spectral type spec_T XSC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1013 Tombecka (A924 BL)          Discovered 1924-Jan-17 by Jekhovsky, B. at Algiers
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A924 BL = 1953 TP3 = 1962 VK = A905 UG = A907 GW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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