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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3536483284415056 5.5074e-08  
a 3.16398678019591 2.2859e-08 au
q 2.045048144168605 1.7294e-07 au
i 21.3457332344765 7.3583e-06 deg
node 8.17441044307037 1.3599e-05 deg
peri 302.7080621018531 1.7193e-05 deg
M 262.8945707581602 1.2596e-05 deg
tp 2459154.987076979792
(2020-Nov-01.48707698)
7.5153e-05 TDB
period 2055.655891449546
5.63
2.2278e-05
6.099e-08
d
yr
n .175126586846277 1.8979e-09 deg/d
Q 4.282925416223215 3.0943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      10250 days (28.06 yr)  
   first obs. used      1991-04-06  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5448  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:37:01  

Additional Information
 Earth MOID = 1.10988 au 
 Jupiter MOID = 1.56995 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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