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JPL Small-Body Database Browser
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59803 (1999 QH2)
Classification: Main-belt Asteroid          SPK-ID: 2059803
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2574288933288175 4.237e-08  
a 3.153467806932896 1.8326e-08 au
q 2.341674079246107 1.3407e-07 au
i .4474010951974737 4.5776e-06 deg
node 305.774827081502 0.00067491 deg
peri 32.35521846718605 0.00067496 deg
M 258.8486734389409 1.052e-05 deg
tp 2459575.211796402767
(2021-Dec-26.71179640)
6.2808e-05 TDB
period 2045.413082942665
5.60
1.783e-05
4.882e-08
d
yr
n .1760035676911191 1.5343e-09 deg/d
Q 3.965261534619685 2.3044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      9393 days (25.72 yr)  
   first obs. used      1993-07-19  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:54:40  

Additional Information
 Earth MOID = 1.33267 au 
 Jupiter MOID = 1.43984 au 
 T_jup = 3.155 
[ 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 15.1   n/a MPO432152  
diameter diameter 5.005 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59803 (1999 QH2)          Discovered 1999-Aug-22 by Bell, G. at Farpoint
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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