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JPL Small-Body Database Browser
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172920 (2005 GL138)
Classification: Main-belt Asteroid          SPK-ID: 2172920
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05203714333512417 4.7162e-08  
a 2.713693411472152 2.5176e-08 au
q 2.572480558451793 1.2992e-07 au
i 2.857260688178238 5.5296e-06 deg
node 129.4599397012203 9.7662e-05 deg
peri 218.7404610828656 0.0001099 deg
M 356.5377092113018 4.9881e-05 deg
tp 2459016.203651068474
(2020-Jun-15.70365107)
0.00022627 TDB
period 1632.824834674338
4.47
2.2723e-05
6.221e-08
d
yr
n .2204768033625609 3.0682e-09 deg/d
Q 2.85490626449251 2.6486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      6591 days (18.05 yr)  
   first obs. used      2000-03-03  
   last obs. used      2018-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55112  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:12:50  

Additional Information
 Earth MOID = 1.56594 au 
 Jupiter MOID = 2.35984 au 
 T_jup = 3.358 
[ 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 16.2   n/a MPO436859  

172920 (2005 GL138)          Discovered 2005-Apr-12 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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