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58957 (1998 QE91)
Classification: Main-belt Asteroid          SPK-ID: 2058957
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3539571496327261 5.3707e-08  
a 3.16551146685873 2.2287e-08 au
q 2.045056050919705 1.6942e-07 au
i 21.34351024477566 7.2728e-06 deg
node 8.167101118934209 1.3357e-05 deg
peri 302.6681804011445 1.6927e-05 deg
M 333.000206845725 1.2786e-05 deg
tp 2459154.784465303903
(2020-Nov-01.28446530)		 7.3938e-05 TDB
period 2057.141963719484
5.63		 2.1725e-05
5.948e-08		 d
yr
n .1750000760030631 1.8481e-09 deg/d
Q 4.285966882797756 3.0175e-08 au
   Orbit Determination Parameters
   # obs. used (total)      603  
   data-arc span      10705 days (29.31 yr)  
   first obs. used      1991-04-06  
   last obs. used      2020-07-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .549  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:48:49  

Additional Information
 Earth MOID = 1.11074 au 
 Jupiter MOID = 1.57145 au 
 T_jup = 3.003 
[ 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 14.4   n/a MPO436194  
diameter diameter 5.473 km 1.307 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.093   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

58957 (1998 QE91)          Discovered 1998-Aug-28 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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