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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361905680334591 4.3641e-08  
a 2.243685275380672 8.9375e-09 au
q 1.93811650323827 9.6756e-08 au
i 6.452972122189466 4.8155e-06 deg
node 203.0114815956637 3.9067e-05 deg
peri 352.302591279165 4.2344e-05 deg
M 128.046369259592 1.7753e-05 deg
tp 2458163.877510612523
5.975e-05 TDB
period 1227.556057140738
n .2932656296271497 1.7523e-09 deg/d
Q 2.549254047523073 1.0155e-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 = .937192 au 
 Jupiter MOID = 2.41044 au 
 T_jup = 3.612 
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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-January); 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1925-Jan-18 06:36 < 00:01 Eunom 0.0335434317908826 0.0335331034087248 0.033553761022968 7.0057911135631 7.00579105382806 2424168.774912460 0.43105809314227 579.950607935154 39.4072543096609 27.4724957922965 59220.1771909159 T 18 CATAB v2.0f-lin.ifort 2019-Dec-04 03:17:51 2019-Dec-04 03:18

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