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172912 (2005 GB99)
Classification: Main-belt Asteroid          SPK-ID: 2172912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170344744717752 6.2356e-08  
a 2.666719861324527 1.8115e-08 au
q 2.354621703790966 1.6266e-07 au
i 3.80180054070733 6.7057e-06 deg
node 219.2773728008162 8.0611e-05 deg
peri 4.783276010068621 8.425e-05 deg
M 163.1491163852021 2.5428e-05 deg
tp 2458279.646941711153
(2018-Jun-10.14694171)
0.00011145 TDB
period 1590.612972559886
4.35
1.6207e-05
4.437e-08
d
yr
n .2263278410339045 2.3061e-09 deg/d
Q 2.978818018858089 2.0235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      7659 days (20.97 yr)  
   first obs. used      1998-10-14  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57228  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:43:59  

Additional Information
 Earth MOID = 1.34566 au 
 Jupiter MOID = 1.99986 au 
 T_jup = 3.370 
[ 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 15.7   n/a MPO352056  
diameter diameter 2.340 km 0.750 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.204   0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172912 (2005 GB99)          Discovered 2005-Apr-07 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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