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17054 (1999 GL2)
Classification: Main-belt Asteroid          SPK-ID: 2017054
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01303985737101081 4.4125e-08  
a 2.842796394591409 1.1725e-08 au
q 2.805726735071113 1.2489e-07 au
i 1.260964098325054 4.4658e-06 deg
node 213.1977031198149 0.00015085 deg
peri 348.4254349325388 0.00020963 deg
M 186.8224423897837 0.00014788 deg
tp 2460042.682417710446
(2023-Apr-08.18241771)
0.00072072 TDB
period 1750.7214823884
4.79
1.0831e-05
2.965e-08
d
yr
n .2056295096744197 1.2721e-09 deg/d
Q 2.879866054111705 1.1877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2359  
   data-arc span      15796 days (43.25 yr)  
   first obs. used      1977-10-18  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45857  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:32:04  

Additional Information
 Earth MOID = 1.79868 au 
 Jupiter MOID = 2.07717 au 
 T_jup = 3.308 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456803.5 (2014-May-26.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01059568143486521 4.3039e-08  
q 2.814244729714619 1.2106e-07 au
tp 2456576.523128421193
(2013-Oct-11.02312842)
0.00092025 TDB
node 213.2690032414283 0.00015076 deg
peri 356.1439737381008 0.00024062 deg
i 1.259876632796757 4.4711e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2359  
   data-arc span      15796 days (43.25 yr)  
   first obs. used      1977-10-18  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45857  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:32:04  

Additional Information
 Jupiter MOID = 2.07717 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.852389148099494E-15 -5.186914855783106E-15 -1.384230871460502E-11 -4.166155086237639E-17 -2.811042140925506E-12 1.551514499615972E-16
q -5.186914855783106E-15 1.465612184091128E-14 4.152967857837883E-11 7.640606633745655E-16 8.437402863662698E-12 -4.608785643039027E-16
tp -1.384230871460502E-11 4.152967857837883E-11 8.468576714430311E-7 -1.416197696365809E-10 1.725969566560747E-7 1.582812743101033E-12
node -4.166155086237639E-17 7.640606633745655E-16 -1.416197696365809E-10 2.272779663007487E-8 -2.275068953478816E-8 -2.264174891759772E-10
peri -2.811042140925506E-12 8.437402863662698E-12 1.725969566560747E-7 -2.275068953478816E-8 5.789930680095024E-8 2.266784288327501E-10
i 1.551514499615972E-16 -4.608785643039027E-16 1.582812743101033E-12 -2.264174891759772E-10 2.266784288327501E-10 1.999090300874236E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.22   n/a E2021B10  
diameter diameter 6.811 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.747 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.240   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17054 (1999 GL2)          Discovered 1999-Apr-06 by Korlevic, K. at Visnjan
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 GL2 = 1977 UB4 = 1991 RD34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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