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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1040178584807388 3.4291e-08  
a 2.621105069923319 1.0041e-08 au
q 2.348463333696888 9.2276e-08 au
i 11.73332230610091 3.7445e-06 deg
node 204.5338752112 1.7624e-05 deg
peri 279.036504159499 2.5758e-05 deg
M 319.5728055657311 1.9846e-05 deg
tp 2459374.558876132875
(2021-Jun-09.05887613)
8.5603e-05 TDB
period 1549.976353410239
4.24
8.9063e-06
2.438e-08
d
yr
n .2322616078677152 1.3346e-09 deg/d
Q 2.89374680614975 1.1085e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1587  
   data-arc span      22050 days (60.37 yr)  
   first obs. used      1960-10-26  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49891  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:53:06  

Additional Information
 Earth MOID = 1.39714 au 
 Jupiter MOID = 2.23637 au 
 T_jup = 3.367 
[ 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 14.39   n/a MPCxxxxx  
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. 2020-October); 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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