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JPL Small-Body Database Browser
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59489 (1999 JQ2)
Classification: Main-belt Asteroid          SPK-ID: 2059489
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1435179711838 3.4706e-08  
a 2.398631114514532 7.7797e-09 au
q 2.054384443341069 8.3515e-08 au
i 7.371351643028729 3.1863e-06 deg
node 82.16308959841899 2.9842e-05 deg
peri 302.9054391066419 3.1905e-05 deg
M 65.11643124731484 1.048e-05 deg
tp 2458755.067703403763
(2019-Sep-28.56770340)
3.9577e-05 TDB
period 1356.886811549409
3.71
6.6014e-06
1.807e-08
d
yr
n .2653132132583124 1.2908e-09 deg/d
Q 2.742877785687994 8.8962e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1686  
   data-arc span      7542 days (20.65 yr)  
   first obs. used      1999-04-12  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4921  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:10:51  

Additional Information
 Earth MOID = 1.06995 au 
 Jupiter MOID = 2.70939 au 
 T_jup = 3.502 
[ 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 14.1   n/a MPO359150  
diameter diameter 3.425 km 0.601 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.455 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.]
geometric albedo albedo 0.315   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59489 (1999 JQ2)          Discovered 1999-May-08 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JQ2 = 2000 OR26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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