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732 Tjilaki (A912 HK)
Classification: Main-belt Asteroid          SPK-ID: 2000732
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04362437003620213 3.4603e-08  
a 2.456132295933193 6.7996e-09 au
q 2.348985071797537 8.44e-08 au
i 10.99405140635293 3.6443e-06 deg
node 173.34579780 1.8254e-05 deg
peri 64.90029143794649 4.8272e-05 deg
M 359.8027956838055 4.2803e-05 deg
tp 2459001.270175990482
(2020-May-31.77017599)
0.00016716 TDB
period 1405.970020961536
3.85
5.8385e-06
1.598e-08
d
yr
n .2560509787781945 1.0633e-09 deg/d
Q 2.563279520068849 7.0962e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3280  
   data-arc span      39139 days (107.16 yr)  
   first obs. used      1913-08-28  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:26:23  

Additional Information
 Earth MOID = 1.36243 au 
 Jupiter MOID = 2.42802 au 
 T_jup = 3.466 
[ show covariance matrix ]

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 10.5   n/a MPO365251  
diameter diameter 29.791 km 0.431 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 12.34 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Florczak, M.; Dotto, E.; Barucci, M.A.; Birlan, M.; et al. (1997) Planet. Space Sci. 45, 1423-1435.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.138   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

732 Tjilaki (A912 HK)          Discovered 1912-Apr-15 by Massinger, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A912 HK = 1958 FC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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