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JPL Small-Body Database Browser
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5956 d'Alembert (1988 CF5)
Classification: Main-belt Asteroid          SPK-ID: 2005956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2922177196055435 3.3261e-08  
a 2.710567826179199 1.2939e-08 au
q 1.918491877176959 9.3092e-08 au
i 8.97131303963149 4.1722e-06 deg
node 188.6204901496053 2.4479e-05 deg
peri 183.0547741495214 2.5297e-05 deg
M 108.1265808895051 6.7293e-06 deg
tp 2458110.925470861172
(2017-Dec-23.42547086)
2.9458e-05 TDB
period 1630.004657874877
4.46
1.1672e-05
3.196e-08
d
yr
n .2208582645827226 1.5815e-09 deg/d
Q 3.50264377518144 1.672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1948  
   data-arc span      21825 days (59.75 yr)  
   first obs. used      1959-08-06  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46399  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:13:12  

Additional Information
 Earth MOID = .917839 au 
 Jupiter MOID = 1.95796 au 
 T_jup = 3.283 
[ 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 13.2   n/a MPO435755  
diameter diameter 12.277 km 0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5956 d'Alembert (1988 CF5)          Discovered 1988-Feb-13 by Elst, E. W. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 CF5 = 1959 PA = 1968 QN = 1977 RB5 = 1986 VG9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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