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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1359324787307663 4.3623e-08  
a 2.244153335478086 8.9202e-09 au
q 1.939100009934632 9.6726e-08 au
i 6.452059277684377 4.8148e-06 deg
node 203.0103787619211 3.9073e-05 deg
peri 352.2631605585501 4.2364e-05 deg
M 245.3836025900309 1.8028e-05 deg
tp 2459391.450228271073
(2021-Jun-25.95022827)
6.2364e-05 TDB
period 1227.940201908184
3.36
7.3214e-06
2.004e-08
d
yr
n .2931738853737098 1.748e-09 deg/d
Q 2.549206661021539 1.0133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      673  
   data-arc span      10434 days (28.57 yr)  
   first obs. used      1991-04-08  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:17:45  

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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