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73696 (1991 RQ19)
Classification: Main-belt Asteroid          SPK-ID: 2073696
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2439789857544985 7.0623e-08  
a 2.419456446973679 2.0093e-08 au
q 1.829159916963858 1.6886e-07 au
i 3.387632491134273 6.7695e-06 deg
node 305.8240850429314 0.00010679 deg
peri 31.20056742866965 0.00010755 deg
M 180.7129899793452 1.8533e-05 deg
tp 2458085.075675610554
(2017-Nov-27.57567561)
7.7652e-05 JED
period 1374.596202989874
3.76
1.7123e-05
4.688e-08
d
yr
n .2618950926948341 3.2624e-09 deg/d
Q 3.0097529769835 2.4995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      8534 days (23.36 yr)  
   first obs. used      1991-09-12  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50428  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 19:02:30  

Additional Information
 Earth MOID = .81872 au 
 Jupiter MOID = 2.37282 au 
 T_jup = 3.471 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6 mag n/a MPO263903  
rotation period rot_per 2.4917 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

73696 (1991 RQ19)          Discovered 1991-Sep-14 by Holt, H. E. at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RQ19 = 1995 WZ29 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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