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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04362436996844938 3.4831e-08  
a 2.456132293247085 7.8328e-09 au
q 2.348985069395018 8.534e-08 au
i 10.99404719008314 4.6218e-06 deg
node 173.3458064706693 1.9069e-05 deg
peri 64.90026407093448 5.5435e-05 deg
M 359.8028167025133 5.2144e-05 deg
tp 2459001.270093901239
(2020-May-31.77009390)
0.00020365 TDB
period 1405.970018655113
3.85
6.7256e-06
1.841e-08
d
yr
n .2560509791982332 1.2248e-09 deg/d
Q 2.563279517099152 8.1745e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2702  
   data-arc span      38875 days (106.43 yr)  
   first obs. used      1913-08-28  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:35:20  

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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