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85968 (1999 GB2)
Classification: Main-belt Asteroid          SPK-ID: 2085968
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08303372979569441 4.5082e-08  
a 2.487478076931813 1.2775e-08 au
q 2.280933494419143 1.1382e-07 au
i 7.508171465049696 5.1992e-06 deg
node 57.14999860990078 3.4169e-05 deg
peri 304.0275960988298 4.5718e-05 deg
M 239.8562758455421 3.3016e-05 deg
tp 2459078.729000381286
(2020-Aug-17.22900038)
0.00013229 TDB
period 1432.970730255782
3.92
1.1039e-05
3.022e-08
d
yr
n .2512263456600686 1.9353e-09 deg/d
Q 2.694022659444482 1.3836e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1003  
   data-arc span      7354 days (20.13 yr)  
   first obs. used      1999-03-21  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55705  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:56:13  

Additional Information
 Earth MOID = 1.28804 au 
 Jupiter MOID = 2.65781 au 
 T_jup = 3.458 
[ 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 14.8   n/a MPO344893  
diameter diameter 3.427 km 0.442 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.198   0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85968 (1999 GB2)          Discovered 1999-Apr-08 by Kagawa, T. at Gekko
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1999 GB2 = 2001 XC21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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