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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .103931595030009 3.6314e-08  
a 2.620531571780706 1.3034e-08 au
q 2.34817554569904 9.5311e-08 au
i 11.73447448142361 4.2709e-06 deg
node 204.5361759992425 1.9254e-05 deg
peri 279.1374236327841 3.1386e-05 deg
M 273.0072037666215 2.8944e-05 deg
tp 2459374.923683450071
(2021-Jun-09.42368345)
0.00012609 TDB
period 1549.467678684715
4.24
1.156e-05
3.165e-08
d
yr
n .2323378570281572 1.7334e-09 deg/d
Q 2.892887597862371 1.4388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1244  
   data-arc span      21579 days (59.08 yr)  
   first obs. used      1960-10-26  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53137  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:58:13  

Additional Information
 Earth MOID = 1.39689 au 
 Jupiter MOID = 2.23759 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 14.3   n/a MPO493183  
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-August); 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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