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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2925189805219295 3.3054e-08  
a 2.709771972529994 1.2296e-08 au
q 1.917112237678622 9.2346e-08 au
i 8.973365600504591 4.139e-06 deg
node 188.6170309194252 2.1953e-05 deg
peri 183.0122247293121 2.2651e-05 deg
M 196.5525630347382 6.736e-06 deg
tp 2459740.229878384889
(2022-Jun-09.72987839)
3.3284e-05 TDB
period 1629.286828616092
4.46
1.109e-05
3.036e-08
d
yr
n .2209555700550173 1.504e-09 deg/d
Q 3.502431707381366 1.5893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2098  
   data-arc span      22179 days (60.72 yr)  
   first obs. used      1959-08-06  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47187  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:27:54  

Additional Information
 Earth MOID = .917267 au 
 Jupiter MOID = 1.96149 au 
 T_jup = 3.283 
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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

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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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