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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2925189805808143 3.3052e-08  
a 2.709771972145528 1.2226e-08 au
q 1.917112237247055 9.2329e-08 au
i 8.973365594723042 4.1316e-06 deg
node 188.6170309343587 2.1295e-05 deg
peri 183.0122252414268 2.1968e-05 deg
M 196.5525627880363 6.692e-06 deg
tp 2459740.229879343981
(2022-Jun-09.72987934)
3.3154e-05 TDB
period 1629.286828269344
4.46
1.1026e-05
3.019e-08
d
yr
n .2209555701020416 1.4953e-09 deg/d
Q 3.502431707044 1.5802e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2172  
   data-arc span      22230 days (60.86 yr)  
   first obs. used      1959-08-06  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:25:43  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1921-Oct-06 10:40 00:02 Jupiter 1.96650896901268 1.96650849677477 1.96650944125315 2.17909263134811 1.97154680161175 2422968.944699312 1.80975171907292 170.46508913926 28.6486425306922 82.6598039536255 2398130.34503811 T 34 CATAB v2.0f-lin.ifort 2020-Jun-23 16:25:56 2020-Jun-23 16:26
1957-Aug-14 23:56 00:01 Jupiter 1.95303339406606 1.9530331152509 1.95303367288122 2.22504980145952 2.0207560169829 2436065.497408666 1.09694458529308 124.039286446475 26.0189617565026 86.7408033236495 2464984.38422226 T 34 CATAB v2.0f-lin.ifort 2020-Jun-23 16:25:56 2020-Jun-23 16:26
1993-Jun-22 21:31 < 00:01 Jupiter 1.95393764201107 1.95393737768299 1.95393790633927 2.25425842773051 2.05297119653914 2449161.396636303 0.425769395360321 70.2963270822631 24.6342607257021 84.9639466366233 2644326.89921857 T 34 CATAB v2.0f-lin.ifort 2020-Jun-23 16:25:56 2020-Jun-23 16:26
2029-May-02 03:51 < 00:01 Jupiter 1.97576899281764 1.97576870823113 1.97576927740426 2.27499172575612 2.07802234751088 2462258.660209145 0.301316805334284 65.0208635350846 22.6857048100416 82.0002864935967 2939567.96127281 T 34 CATAB v2.0f-lin.ifort 2020-Jun-23 16:25:56 2020-Jun-23 16:26

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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