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4713 Steel (1989 QL)
Classification: Inner Main-belt Asteroid          SPK-ID: 2004713
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07349310304561239 1.9382e-08  
a 1.92627906931286 5.4721e-09 au
q 1.784710843177244 3.6827e-08 au
i 22.67364152759087 1.9768e-06 deg
node 101.4189783986897 3.3257e-06 deg
peri 152.5859797276296 1.6911e-05 deg
M 318.6741390279412 1.9164e-05 deg
tp 2459312.597685292628
(2021-Apr-08.09768529)
5.2058e-05 TDB
period 976.5112149177213
2.67
4.1611e-06
1.139e-08
d
yr
n .3686593604870506 1.5709e-09 deg/d
Q 2.067847295448477 5.8743e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2170  
   data-arc span      16205 days (44.37 yr)  
   first obs. used      1976-10-24  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34379  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:40:24  

Additional Information
 Earth MOID = .776804 au 
 Jupiter MOID = 3.05706 au 
 T_jup = 3.821 
[ 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 13.24   n/a MPCxxxxx  
diameter diameter 6.286 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.199 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2010) Minor Planet Bull. 37, 161-165.]
[Warner, B.D (2012) Minor Planet Bull. 39, 69-80.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 108-114.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 380-386.]
geometric albedo albedo 0.381   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B A   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4713 Steel (1989 QL)          Discovered 1989-Aug-26 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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