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13705 Llapasset (1998 QJ2)
Classification: Main-belt Asteroid          SPK-ID: 2013705
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298413510406348 3.4191e-08  
a 2.213583252131361 7.1124e-09 au
q 1.926168612033702 7.6011e-08 au
i 4.69779161273646 2.996e-06 deg
node 128.6941808765423 4.5912e-05 deg
peri 239.9371639470434 4.7424e-05 deg
M 183.2393772249854 1.2588e-05 deg
tp 2459591.143242459611
(2022-Jan-11.64324246)
4.2513e-05 TDB
period 1202.935155733769
3.29
5.7977e-06
1.587e-08
d
yr
n .2992680015078673 1.4423e-09 deg/d
Q 2.500997892229019 8.0359e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1959  
   data-arc span      15799 days (43.26 yr)  
   first obs. used      1977-03-12  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44623  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:44:39  

Additional Information
 Earth MOID = .929783 au 
 Jupiter MOID = 2.96044 au 
 T_jup = 3.640 
[ 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 14.6   n/a MPO458954  
diameter diameter 2.815 km 0.394 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.425   0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13705 Llapasset           Discovered 1998 Aug. 19 at Bedoin.
Jean-Marie Llapasset is a highly active French amateur astronomer. His main interest is the CCD observation of supernovae, and he is responsible for the coordination of measuring supernova magnitudes within the Association des Utilisateurs de Détecteurs Electroniques.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1998 QJ2 = 1977 EB3 = 1991 LX3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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