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2587 Gardner (1980 OH)
Classification: Main-belt Asteroid          SPK-ID: 2002587
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .155750315405156 3.1796e-08  
a 3.164514034823711 1.678e-08 au
q 2.671639975795875 1.0072e-07 au
i 2.631745650209248 3.6506e-06 deg
node 87.74783152490501 8.5523e-05 deg
peri 183.4731479550323 8.6468e-05 deg
M 71.1967515678939 1.3289e-05 deg
tp 2458593.853869350016
(2019-Apr-20.35386935)
7.5539e-05 TDB
period 2056.169752272938
5.63
1.6354e-05
4.477e-08
d
yr
n .1750828206679179 1.3926e-09 deg/d
Q 3.657388093851547 1.9394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2753  
   data-arc span      23876 days (65.37 yr)  
   first obs. used      1955-03-23  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46136  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:54:19  

Additional Information
 Earth MOID = 1.65544 au 
 Jupiter MOID = 1.44791 au 
 T_jup = 3.183 
[ 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 11.5   n/a MPO400020  
diameter diameter 20.564 km 0.356 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.631 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.115   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2587 Gardner (1980 OH)          Discovered 1980-Jul-17 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 OH = 1977 BF = 1978 EZ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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