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46558 (1991 GY5)
Classification: Main-belt Asteroid          SPK-ID: 2046558
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .135932467313662 4.3612e-08  
a 2.244153339932736 8.884e-09 au
q 1.939100039405484 9.6723e-08 au
i 6.452059701375261 4.8148e-06 deg
node 203.0103749967668 3.8654e-05 deg
peri 352.2631652759501 4.1933e-05 deg
M 245.3836015959157 1.7979e-05 deg
tp 2459391.450232826000
(2021-Jun-25.95023283)
6.2212e-05 TDB
period 1227.94020556438
3.36
7.2916e-06
1.996e-08
d
yr
n .2931738845007835 1.7409e-09 deg/d
Q 2.549206640459988 1.0092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      10521 days (28.80 yr)  
   first obs. used      1991-04-08  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54993  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:30:23  

Additional Information
 Earth MOID = .93785 au 
 Jupiter MOID = 2.40935 au 
 T_jup = 3.612 
[ 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 16.1   n/a MPO449295  
rotation period rot_per 6.333 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.]

46558 (1991 GY5)          Discovered 1991-Apr-08 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 GY5 = 1999 TX56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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