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213046 (1998 QA85)
Classification: Main-belt Asteroid          SPK-ID: 2213046
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .261055869401731 4.9539e-08  
a 2.536379332541254 9.9596e-09 au
q 1.874242620752115 1.2742e-07 au
i 4.535794852323241 3.617e-06 deg
node 245.7861546991025 7.1651e-05 deg
peri 115.895317568161 7.2772e-05 deg
M 174.3338046206826 1.4613e-05 deg
tp 2458486.005577591574
(2019-Jan-02.50557759)
5.7196e-05 TDB
period 1475.433824361782
4.04
8.6903e-06
2.379e-08
d
yr
n .2439960329333798 1.4371e-09 deg/d
Q 3.198516044330393 1.256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      415  
   data-arc span      8293 days (22.70 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54343  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:39:13  

Additional Information
 Earth MOID = .875556 au 
 Jupiter MOID = 2.293 au 
 T_jup = 3.395 
[ 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 16.23   n/a E2021B55  

213046 (1998 QA85)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

Alternate Designations
 1998 QA85 = 2002 TG172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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