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79535 (1998 QW23)
Classification: Main-belt Asteroid          SPK-ID: 2079535
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336678484491073 2.8798e-08  
a 2.301194527564988 7.659e-09 au
q 1.993598806202516 6.7949e-08 au
i 8.476529161330696 4.419e-06 deg
node 168.6357365806364 2.1886e-05 deg
peri 287.1900224303307 2.7993e-05 deg
M 335.3162992337084 1.7873e-05 deg
tp 2459087.925112108355
(2020-Aug-26.42511211)
6.3472e-05 TDB
period 1275.053552828178
3.49
6.3656e-06
1.743e-08
d
yr
n .2823410822247341 1.4096e-09 deg/d
Q 2.60879024892746 8.6828e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1382  
   data-arc span      8082 days (22.13 yr)  
   first obs. used      1998-08-04  
   last obs. used      2020-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:01:14  

Additional Information
 Earth MOID = 1.02926 au 
 Jupiter MOID = 2.56094 au 
 T_jup = 3.565 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO502635  
diameter diameter 3.008 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 92.785 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.282   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79535 (1998 QW23)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 QW23 = 2000 CP49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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