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58964 (1998 QJ104)
Classification: Main-belt Asteroid          SPK-ID: 2058964
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2773952527626795 4.6925e-08  
a 3.059562055063505 2.2163e-08 au
q 2.21085406545606 1.4962e-07 au
i 11.80958831644515 6.6043e-06 deg
node 9.899623592467712 1.985e-05 deg
peri 292.7779330678474 2.2636e-05 deg
M 54.78294186199491 9.2081e-06 deg
tp 2458703.038902750156
(2019-Aug-07.53890275)
5.0004e-05 TDB
period 1954.732465439826
5.35
2.1239e-05
5.815e-08
d
yr
n .1841684252780842 2.0011e-09 deg/d
Q 3.908270044670949 2.8311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1123  
   data-arc span      10827 days (29.64 yr)  
   first obs. used      1991-03-08  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52249  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:48:48  

Additional Information
 Earth MOID = 1.22832 au 
 Jupiter MOID = 1.6031 au 
 T_jup = 3.143 
[ 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 14.0   n/a MPO436194  
diameter diameter 7.152 km 0.375 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58964 (1998 QJ104)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QJ104 = 1999 XE209 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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