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85502 (1997 TZ23)
Classification: Main-belt Asteroid          SPK-ID: 2085502
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .077757498493991 3.7956e-08  
a 3.147083418975177 2.4912e-08 au
q 2.90237408476375 1.2761e-07 au
i 1.343807772296303 5.175e-06 deg
node 221.3891324356393 0.00023082 deg
peri 218.6616676855036 0.00023573 deg
M 333.7292387049045 4.6148e-05 deg
tp 2459149.309605929320
(2020-Oct-26.80960593)
0.00026172 TDB
period 2039.204632587355
5.58
2.4213e-05
6.629e-08
d
yr
n .1765394184806406 2.0962e-09 deg/d
Q 3.391792753186603 2.6849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      410  
   data-arc span      8051 days (22.04 yr)  
   first obs. used      1997-10-11  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55655  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:11:46  

Additional Information
 Earth MOID = 1.91819 au 
 Jupiter MOID = 1.79357 au 
 T_jup = 3.204 
[ 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 15.4   n/a MPO493475  
diameter diameter 5.326 km 0.296 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.027   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85502 (1997 TZ23)          Discovered 1997-Oct-11 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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