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JPL Small-Body Database Browser
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74838 (1999 TK34)
Classification: Main-belt Asteroid          SPK-ID: 2074838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .177734449029803 4.0636e-08  
a 2.230797290977281 6.8796e-09 au
q 1.834307763568257 9.0608e-08 au
i 5.399880964498772 3.3044e-06 deg
node 133.879592065214 4.5534e-05 deg
peri 246.7646631240918 4.6543e-05 deg
M 310.6868354870977 8.8818e-06 deg
tp 2458767.205128877038
(2019-Oct-10.70512888)
2.9821e-05 TDB
period 1216.994427117559
3.33
5.6297e-06
1.541e-08
d
yr
n .2958107218721263 1.3684e-09 deg/d
Q 2.627286818386305 8.1024e-09 au
  Orbit Determination Parameters
   # obs. used (total)      825  
   data-arc span      7361 days (20.15 yr)  
   first obs. used      1999-10-02  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53286  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:49:33  

Additional Information
 Earth MOID = .84371 au 
 Jupiter MOID = 2.83924 au 
 T_jup = 3.615 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO449471  
diameter diameter 2.577 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19.4841 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.153   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74838 (1999 TK34)          Discovered 1999-Oct-03 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TK34 = 2001 FJ65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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