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 ]  
2060 Chiron (1977 UB)
Classification: Centaur          SPK-ID: 2002060
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 107 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3820988933554049 9.2309e-08  
a 13.63836660643881 1.4666e-06 AU
q 8.427161818943231 8.6321e-07 AU
i 6.93836176636851 6.4174e-06 deg
node 209.278038548185 6.4032e-05 deg
peri 339.3496588255805 6.5208e-05 deg
M 134.5261259608246 2.6616e-05 deg
tp 2450125.921075548801
(1996-Feb-12.42107555)
0.00043316 JED
period 18396.78646156162
50.37
0.0029674
8.124e-06
d
yr
n .01956863503048136 3.1564e-09 deg/d
Q 18.84957139393439 2.027e-06 AU
  Orbit Determination Parameters
   # obs. used (total)      1355  
   data-arc span      43949 days (120.33 yr)  
   first obs. used      1895-04-24  
   last obs. used      2015-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60877  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:03:48  

Additional Information
 Earth MOID = 7.43042 AU 
 T_jup = 3.352 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 6.1 mag n/a MPO302073  
diameter diameter 166 km n/a Dunham occultation list: Duham 1998 Yeomans E-mail 2001-Apr-04
rotation period rot_per 5.918 h n/a LCDB (Rev. 2015-July); Warner et al., 2009  
geometric albedo albedo 0.15   0.03 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  
B-V BV .704 mag .024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=1.81, mean=2.51, max.=2.88) deg.
U-B UB .283 mag .060 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=1.81, mean=2.51, max.=2.88) deg.
Tholen spectral type spec_T B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Cb   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)

2060 Chiron (1977 UB)          Discovered 1977-Oct-18 by Kowal, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1977 UB = 95P 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Sep-05 07:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin