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JPL Small-Body Database Browser
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117929 (4742 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117929
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623032948625003 5.5515e-08  
a 2.369324044052272 1.0461e-08 au
q 1.984774945105645 1.2903e-07 au
i 2.97409458767056 4.9742e-06 deg
node 15.58408195744736 9.1783e-05 deg
peri 36.36121212715241 9.3294e-05 deg
M 345.4871333587883 1.4077e-05 deg
tp 2458654.201426617500
(2019-Jun-19.70142662)
5.2134e-05 TDB
period 1332.094758412664
3.65
8.8224e-06
2.415e-08
d
yr
n .2702510446246175 1.7899e-09 deg/d
Q 2.7538731429989 1.2159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      21623 days (59.20 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58236  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 09:50:30  

Additional Information
 Earth MOID = .995981 au 
 Jupiter MOID = 2.60622 au 
 T_jup = 3.526 
[ 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 16.4   n/a MPO359565  
diameter diameter 2.937 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.062   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

117929 (4742 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 4742 P-L = 2000 QU198 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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