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JPL Small-Body Database Browser
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59573 (1999 JK49)
Classification: Main-belt Asteroid          SPK-ID: 2059573
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022119031774678 6.7516e-08  
a 2.569095326216716 1.5082e-08 au
q 2.306503203479767 1.777e-07 au
i 7.799697839185284 4.3703e-06 deg
node 226.2452892958758 4.4658e-05 deg
peri 105.753554643851 4.8987e-05 deg
M 314.5771793499583 2.0901e-05 deg
tp 2459190.275591647439
(2020-Dec-06.77559165)
8.7897e-05 TDB
period 1504.072446743031
4.12
1.3245e-05
3.626e-08
d
yr
n .2393501727789483 2.1077e-09 deg/d
Q 2.831687448953664 1.6624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      7299 days (19.98 yr)  
   first obs. used      1999-05-10  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5825  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:15:16  

Additional Information
 Earth MOID = 1.31153 au 
 Jupiter MOID = 2.48118 au 
 T_jup = 3.410 
[ show covariance matrix ]

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 14.9   n/a MPO337726  
diameter diameter 3.307 km 0.349 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.013 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 0.161   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59573 (1999 JK49)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JK49 = 2000 RR44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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