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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379590487118096 3.1954e-08  
a 2.160824943372632 7.4209e-09 au
q 1.862719589752194 6.7928e-08 au
i 1.677800955674706 3.5952e-06 deg
node 219.559284865645 0.00016142 deg
peri .9013235988114889 0.00016238 deg
M 109.3702966206685 1.915e-05 deg
tp 2458848.027943229816
(2019-Dec-30.52794323)
6.1039e-05 TDB
period 1160.186489000404
3.18
5.9766e-06
1.636e-08
d
yr
n .3102949425916602 1.5985e-09 deg/d
Q 2.458930296993071 8.4446e-09 au
  Orbit Determination Parameters
   # obs. used (total)      681  
   data-arc span      10833 days (29.66 yr)  
   first obs. used      1991-04-08  
   last obs. used      2020-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54239  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:04  

Additional Information
 Earth MOID = .853414 au 
 Jupiter MOID = 2.51264 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 16.57   n/a E2021B55  
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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