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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0284135057367801 1.3759e-08  
a 2.366020348884819 7.2896e-09 au
q 2.298793416128441 3.1746e-08 au
i 7.488076378293115 6.482e-07 deg
node 108.1858885037299 2.7866e-06 deg
peri 119.6284935642049 2.9366e-05 deg
M 121.0078016965122 2.8463e-05 deg
tp 2458753.675466504594
(2019-Sep-27.17546650)
0.00010511 TDB
period 1329.309596597544
3.64
6.1433e-06
1.682e-08
d
yr
n .2708172730577165 1.2516e-09 deg/d
Q 2.433247281641196 7.4967e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2935  
   data-arc span      25821 days (70.69 yr)  
   first obs. used      1950-05-10  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39812  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 17:50:01  

Additional Information
 Earth MOID = 1.29384 au 
 Jupiter MOID = 2.55783 au 
 T_jup = 3.536 
[ 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 12.96   n/a E2021B10  
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. 2020-October); 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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