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134585 (1999 TN56)
Classification: Main-belt Asteroid          SPK-ID: 2134585
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1878265752973907 5.6005e-08  
a 2.368643117954849 1.2165e-08 au
q 1.923748993007657 1.3611e-07 au
i 1.73152250643199 6.6028e-06 deg
node 29.46217163051454 0.00019746 deg
peri .8680932029222233 0.00019815 deg
M 234.1499439768888 1.7992e-05 deg
tp 2459465.977598955127
(2021-Sep-08.47759895)
6.8383e-05 TDB
period 1331.520548493618
3.65
1.0258e-05
2.808e-08
d
yr
n .2703675886994585 2.0829e-09 deg/d
Q 2.813537242902042 1.445e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7092 days (19.42 yr)  
   first obs. used      1999-10-06  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54527  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:29:08  

Additional Information
 Earth MOID = .929136 au 
 Jupiter MOID = 2.62772 au 
 T_jup = 3.522 
[ 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 16.9   n/a MPO229676  
rotation period rot_per 7.942 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

134585 (1999 TN56)          Discovered 1999-Oct-06 by Spacewatch at Kitt Peak
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1999 TN56 = 2003 YB79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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