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5524 Lecacheux (1991 RA30)
Classification: Main-belt Asteroid          SPK-ID: 2005524
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02821366604675969 3.8459e-08  
a 2.367181477563488 8.4674e-09 au
q 2.300394609883436 9.2772e-08 au
i 7.488280716191926 3.8551e-06 deg
node 108.1873112665787 2.9969e-05 deg
peri 120.6275732697426 7.9527e-05 deg
M 65.88166236228801 7.3999e-05 deg
tp 2458757.051105912656
(2019-Sep-30.55110591)
0.00027339 TDB
period 1330.288258202964
3.64
7.1377e-06
1.954e-08
d
yr
n .2706180391957382 1.452e-09 deg/d
Q 2.43396834524354 8.7063e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2497  
   data-arc span      25605 days (70.10 yr)  
   first obs. used      1950-05-10  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:21:11  

Additional Information
 Earth MOID = 1.29653 au 
 Jupiter MOID = 2.55874 au 
 T_jup = 3.535 
[ 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 12.9   n/a MPO384804  
diameter diameter 19.902 km 12.768 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 8.4160 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.034   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5524 Lecacheux (1991 RA30)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 RA30 = 1954 KB = 1979 EG = 1983 HE1 = 1988 VV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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