Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
65 Cybele
Classification: Outer Main-belt Asteroid          SPK-ID: 2000065
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1106645727565682 4.1191e-08  
a 3.428310991769122 1.0054e-08 AU
q 3.048918420588345 1.391e-07 AU
i 3.562492815910314 5.5381e-06 deg
node 155.6383445646083 6.7228e-05 deg
peri 102.3635130421804 7.0871e-05 deg
M 12.88860716343668 2.3145e-05 deg
tp 2456917.491564295781
(2014-Sep-16.99156430)
0.00014884 JED
period 2318.562159167443
6.35
1.02e-05
2.793e-08
d
yr
n .1552686429288012 6.8304e-10 deg/d
Q 3.807703562949898 1.1167e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1932  
   data-arc span      55632 days (152.31 yr)  
   first obs. used      1861-03-12  
   last obs. used      2013-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6127  
   data source      ORB  
   producer      Davide Farnocchia  
   solution date      2013-Jul-16 08:47:13  

Additional Information
 Earth MOID = 2.0381 AU 
 T_jup = 3.128 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.62 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
magnitude slope G 0.01   n/a PDS3 (MPC 17257) Fit
diameter diameter 237.26 km 4.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
rotation period rot_per 6.0814 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Schober, H.J.; Scaltriti, F.; Zappala, V.; Harris, A.W. (1980) Astron. Astrophys. 91, 1-6.]
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.]
[Pilcher, F.; Stephens, R.D. (2010) Minor Planet Bul. 37, 8.]
[Pilcher, F. (2012) Minor Planet Bul. 39, 57-60.]
geometric albedo albedo 0.0706   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
B-V BV .690 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=17; phase (min.=1.75, mean=10.38, max.=18.00) deg.
U-B UB .271 mag .024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=7; phase (min.=1.75, mean=4.51, max.=10.04) deg.
Tholen spectral type spec_T P   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Xc   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)

65 Cybele          Discovered 1861-Mar-08 by Tempel, E. W. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1949 YQ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-23 09:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin