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JPL Small-Body Database Browser
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245119 (2004 QS20)
Classification: Main-belt Asteroid          SPK-ID: 2245119
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1538328230074141 9.1989e-08  
a 3.199194073962153 4.6049e-08 au
q 2.707053018215964 3.1729e-07 au
i 16.91189881664642 8.8602e-06 deg
node 287.7126393977763 2.2129e-05 deg
peri 25.60024528189412 3.8206e-05 deg
M 292.6092855712718 2.9337e-05 deg
tp 2459391.752266651613
(2021-Jun-26.25226665)
0.00017518 TDB
period 2090.062662023609
5.72
4.5127e-05
1.236e-07
d
yr
n .1722436396483186 3.7189e-09 deg/d
Q 3.691335129708341 5.3133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7530 days (20.62 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54446  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:37:19  

Additional Information
 Earth MOID = 1.70173 au 
 Jupiter MOID = 1.58878 au 
 T_jup = 3.109 
[ 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 14.5   n/a MPO401856  
diameter diameter 8.333 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245119 (2004 QS20)          Discovered 2004-Aug-20 by CSS at Catalina
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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