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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2925189803960024 3.3052e-08  
a 2.709771971670631 1.221e-08 au
q 1.917112237411873 9.2328e-08 au
i 8.973365550956943 4.1272e-06 deg
node 188.6170315302806 2.1135e-05 deg
peri 183.0122253233914 2.1802e-05 deg
M 196.5525624705886 6.681e-06 deg
tp 2459740.229880586225
(2022-Jun-09.72988059)
3.3121e-05 TDB
period 1629.286827841037
4.46
1.1012e-05
3.015e-08
d
yr
n .2209555701601263 1.4934e-09 deg/d
Q 3.50243170592939 1.5781e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2191  
   data-arc span      22262 days (60.95 yr)  
   first obs. used      1959-08-06  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4693  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:39:32  

Additional Information
 Earth MOID = .917267 au 
 Jupiter MOID = 1.96149 au 
 T_jup = 3.283 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457137.5 (2015-Apr-25.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2904909288374488 3.3008e-08  
q 1.925323513440037 9.2249e-08 au
tp 2456479.658879914499
(2013-Jul-06.15887991)
2.6392e-05 TDB
node 188.6294821146932 2.1154e-05 deg
peri 183.1125122893353 2.1834e-05 deg
i 8.962186886702206 4.1229e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2191  
   data-arc span      22262 days (60.95 yr)  
   first obs. used      1959-08-06  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4693  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:39:32  

Additional Information
 Jupiter MOID = 1.96149 au 
 T_jup = 3.283 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.089505533373303E-15 -3.032332728403136E-15 -7.401094604773491E-15 2.127634249437397E-15 -1.083511253023021E-14 -1.395463542457934E-15
q -3.032332728403136E-15 8.509848224051618E-15 1.489926122747567E-15 -6.52001505945652E-15 3.180738667022992E-14 4.121083805436864E-15
tp -7.401094604773491E-15 1.489926122747567E-15 6.96547358431954E-10 2.357071524310044E-12 1.526408302653679E-10 -1.188934149344343E-12
node 2.127634249437397E-15 -6.52001505945652E-15 2.357071524310044E-12 4.475024658743772E-10 -4.411209302255318E-10 2.622514649604431E-12
peri -1.083511253023021E-14 3.180738667022992E-14 1.526408302653679E-10 -4.411209302255318E-10 4.767334394636466E-10 -2.785526341019955E-12
i -1.395463542457934E-15 4.121083805436864E-15 -1.188934149344343E-12 2.622514649604431E-12 -2.785526341019955E-12 1.699796000687583E-11

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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