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85331 (1995 QA13)
Classification: Main-belt Asteroid          SPK-ID: 2085331
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03322294440031779 5.339e-08  
a 3.191692358159661 3.2408e-08 au
q 3.085654940401604 1.671e-07 au
i 6.024990942649983 6.0556e-06 deg
node 206.5114400081 5.1214e-05 deg
peri 5.505011686258941 0.00010027 deg
M 274.6491891782384 8.7506e-05 deg
tp 2459494.281839217813
(2021-Oct-06.78183922)
0.00050685 TDB
period 2082.715564233274
5.70
3.1721e-05
8.685e-08
d
yr
n .172851255438968 2.6327e-09 deg/d
Q 3.297729775917719 3.3485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      8930 days (24.45 yr)  
   first obs. used      1995-08-22  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:30:24  

Additional Information
 Earth MOID = 2.07943 au 
 Jupiter MOID = 1.66591 au 
 T_jup = 3.187 
[ 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 14.8   n/a MPO432397  

85331 (1995 QA13)          Discovered 1995-Aug-22 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1995 QA13 = 2001 TU98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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