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85447 (1997 GQ11)
Classification: Main-belt Asteroid          SPK-ID: 2085447
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1007668799597939 3.7908e-08  
a 2.275695397486065 9.0136e-09 au
q 2.046380672542531 8.7779e-08 au
i 6.860246054122536 5.7385e-06 deg
node 358.9192758136136 3.0713e-05 deg
peri 64.84612623367777 4.6109e-05 deg
M 275.464832337718 3.0888e-05 deg
tp 2458894.945242231339
(2020-Feb-15.44524223)
0.00010727 TDB
period 1253.919405788053
3.43
7.4498e-06
2.04e-08
d
yr
n .2870997915322556 1.7057e-09 deg/d
Q 2.505010122429598 9.9218e-09 au
  Orbit Determination Parameters
   # obs. used (total)      713  
   data-arc span      8269 days (22.64 yr)  
   first obs. used      1997-03-11  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53832  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:11:26  

Additional Information
 Earth MOID = 1.06929 au 
 Jupiter MOID = 2.74298 au 
 T_jup = 3.593 
[ 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 15.7   n/a MPO453284  
diameter diameter 1.614 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.681 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.428   0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85447 (1997 GQ11)          Discovered 1997-Apr-03 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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