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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1358313448964613 3.5785e-08  
a 2.244378123119744 7.1722e-09 au
q 1.939521224200194 8.1933e-08 au
i 6.451730362609503 3.8468e-06 deg
node 203.0031107195189 3.5866e-05 deg
peri 352.2282115161661 3.8688e-05 deg
M 304.0455570302804 1.4426e-05 deg
tp 2459391.386204614471
(2021-Jun-25.88620461)
4.9254e-05 TDB
period 1228.124703133901
3.36
5.8869e-06
1.612e-08
d
yr
n .2931298418486007 1.4051e-09 deg/d
Q 2.549235022039294 8.1464e-09 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      10939 days (29.95 yr)  
   first obs. used      1991-04-08  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5158  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:39:15  

Additional Information
 Earth MOID = .93756 au 
 Jupiter MOID = 2.40822 au 
 T_jup = 3.612 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.19   n/a MPCxxxxx  
rotation period rot_per 6.333 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.]

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

Alternate Designations
 1991 GY5 = 1999 TX56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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