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85255 (1993 TZ13)
Classification: Main-belt Asteroid          SPK-ID: 2085255
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2023458271817455 4.9729e-08  
a 3.104929007434781 2.6466e-08 au
q 2.476659579084794 1.5232e-07 au
i 10.42164817182082 5.0706e-06 deg
node 185.5308942003105 2.8811e-05 deg
peri 191.1596450531573 3.1109e-05 deg
M 320.8555909870508 1.3753e-05 deg
tp 2459217.791720582709
(2021-Jan-03.29172058)
7.7985e-05 TDB
period 1998.370172963853
5.47
2.5551e-05
6.995e-08
d
yr
n .1801468040658711 2.3033e-09 deg/d
Q 3.733198435784768 3.1821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      13458 days (36.85 yr)  
   first obs. used      1982-10-19  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55029  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:53:42  

Additional Information
 Earth MOID = 1.47879 au 
 Jupiter MOID = 1.73012 au 
 T_jup = 3.164 
[ 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 14.5   n/a MPO439613  
diameter diameter 7.050 km 1.908 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.050   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

85255 (1993 TZ13)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1993 TZ13 = 1982 UC4 = 1998 QS79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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