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120463 (1991 GQ4)
Classification: Main-belt Asteroid          SPK-ID: 2120463
[ 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 .1377145404612321 4.0926e-08  
a 2.161368405275173 1.0358e-08 au
q 1.863716548575277 9.1662e-08 au
i 1.677712039040042 4.3018e-06 deg
node 219.5950588296316 0.00017444 deg
peri .9928948208934288 0.00017588 deg
M 47.22432730332182 2.6367e-05 deg
tp 2458848.250840283131
(2019-Dec-30.75084028)		 8.4274e-05 TDB
period 1160.624208493858
3.18		 8.3429e-06
2.284e-08		 d
yr
n .3101779175080037 2.2297e-09 deg/d
Q 2.45902026197507 1.1784e-08 au
   Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      10195 days (27.91 yr)  
   first obs. used      1991-04-08  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56125  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:08:18  

Additional Information
 Earth MOID = .855507 au 
 Jupiter MOID = 2.51383 au 
 T_jup = 3.684 
[ 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 16.5   n/a MPO426759  
diameter diameter 2.596 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120463 (1991 GQ4)          Discovered 1991-Apr-08 by Elst, E. W. at La Silla
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1991 GQ4 = 2001 QU35 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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