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JPL Small-Body Database Browser
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17923 (1999 GY16)
Classification: Main-belt Asteroid          SPK-ID: 2017923
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07320448698121904 4.0888e-08  
a 2.427357391274959 9.3767e-09 au
q 2.249663938726605 9.839e-08 au
i 6.985791252757057 4.2671e-06 deg
node 135.3978765904623 2.6939e-05 deg
peri 21.62703599475765 3.5547e-05 deg
M 135.6102975667226 2.462e-05 deg
tp 2458080.157641108185
(2017-Nov-22.65764111)		 9.3355e-05 TDB
period 1381.334991237572
3.78		 8.004e-06
2.191e-08		 d
yr
n .2606174478194223 1.5101e-09 deg/d
Q 2.605050843823312 1.0063e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1738  
   data-arc span      10540 days (28.86 yr)  
   first obs. used      1991-01-15  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51121  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:23:51  

Additional Information
 Earth MOID = 1.26167 au 
 Jupiter MOID = 2.37992 au 
 T_jup = 3.496 
[ 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 14.0   n/a MPO502305  
diameter diameter 3.568 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 20. h n/a LCDB (Rev. 2019-January); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Polishook, D.; Ofek, E.O.; Waszczak, A.; Kulkarni, S.R.; et al. (2012). Mon. Not. Royal Ast. Soc. 421, 2094-2108.]
geometric albedo albedo 0.459   0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17923 (1999 GY16)          Discovered 1999-Apr-15 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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