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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 ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01303905147889881 4.4049e-08  
a 2.84291402419699 1.2059e-08 au
q 2.805845121885402 1.2468e-07 au
i 1.260944381858934 4.4767e-06 deg
node 213.1979295482769 0.0001574 deg
peri 349.1038089622341 0.00021562 deg
M 145.0017859185799 0.00014944 deg
tp 2458295.295838905021
(2018-Jun-25.79583891)		 0.00072562 TDB
period 1750.830145890376
4.79		 1.114e-05
3.05e-08		 d
yr
n .2056167474869036 1.3082e-09 deg/d
Q 2.879982926508578 1.2216e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2230  
   data-arc span      15729 days (43.06 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:04:26  

Additional Information
 Earth MOID = 1.79978 au 
 Jupiter MOID = 2.07821 au 
 T_jup = 3.308 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456619.5 (2013-Nov-23.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01039015616801471 4.3126e-08  
q 2.814218848141589 1.2129e-07 au
tp 2456574.978178954366
(2013-Oct-09.47817895)		 0.00094228 TDB
node 213.2717587549198 0.00015728 deg
peri 355.8197267995403 0.00024837 deg
i 1.260013724054297 4.4827e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2230  
   data-arc span      15729 days (43.06 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:04:26  

Additional Information
 Jupiter MOID = 2.07821 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.859868433484718E-15 -5.206169298107909E-15 -1.407590601930062E-11 3.182372313265541E-15 -2.862955601669291E-12 1.344165921860562E-16
q -5.206169298107909E-15 1.471089632343388E-14 4.19487472788153E-11 -7.973477651672947E-15 8.533627288260495E-12 -4.009848334937476E-16
tp -1.407590601930062E-11 4.19487472788153E-11 8.878984061864969E-7 -1.90540650552325E-10 1.811498744119863E-7 2.03572571911691E-12
node 3.182372313265541E-15 -7.973477651672947E-15 -1.90540650552325E-10 2.473694459010693E-8 -2.476932961288505E-8 -2.399385501976844E-10
peri -2.862955601669291E-12 8.533627288260495E-12 1.811498744119863E-7 -2.476932961288505E-8 6.168934621622753E-8 2.402891485325021E-10
i 1.344165921860562E-16 -4.009848334937476E-16 2.03572571911691E-12 -2.399385501976844E-10 2.402891485325021E-10 2.009467008495138E-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 13.2   n/a MPO452412  
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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