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JPL Small-Body Database Browser
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46861 (1998 QJ73)
Classification: Main-belt Asteroid          SPK-ID: 2046861
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036477520659777 3.6371e-08  
a 2.620842656689703 1.321e-08 au
q 2.34919820680519 9.5399e-08 au
i 11.73421647261097 4.2927e-06 deg
node 204.5417070254293 1.9363e-05 deg
peri 279.2098489833753 3.1533e-05 deg
M 179.9683240594193 2.8666e-05 deg
tp 2457825.764562831364
(2017-Mar-13.26456283)
0.00012054 TDB
period 1549.743594259534
4.24
1.1717e-05
3.208e-08
d
yr
n .2322964917122355 1.7563e-09 deg/d
Q 2.892487106574216 1.458e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1233  
   data-arc span      21552 days (59.01 yr)  
   first obs. used      1960-10-26  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53247  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:29:10  

Additional Information
 Earth MOID = 1.39822 au 
 Jupiter MOID = 2.23887 au 
 T_jup = 3.368 
[ 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 MPO449297  
diameter diameter 3.803 km 0.791 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.285 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.280   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46861 (1998 QJ73)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QJ73 = 2000 AZ190 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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