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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 111 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3827078399097074 8.9311e-08  
a 13.6370759983061 1.4338e-06 au
q 8.418060100309857 8.5335e-07 au
i 6.944692204750731 6.3033e-06 deg
node 209.2319718891073 6.0455e-05 deg
peri 339.462808225344 6.1615e-05 deg
M 142.1795223193375 2.7631e-05 deg
tp 2450135.847112637110
(1996-Feb-22.34711264)
0.00042111 JED
period 18394.17517226349
50.36
0.0029009
7.942e-06
d
yr
n .01957141304943332 3.0865e-09 deg/d
Q 18.85609189630235 1.9825e-06 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      44060 days (120.63 yr)  
   first obs. used      1895-04-24  
   last obs. used      2015-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6107  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:41:59  

Additional Information
 Earth MOID = 7.42001 au 
 Jupiter MOID = 2.99131 au 
 T_jup = 3.351 
[ 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 6.0 mag n/a MPO350816  
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-December); Warner et al., 2009 Published Reference List:
[Bus, S.J.; Bowell, E.; Harris, A.W.; Hewitt, A.V. (1989) Icarus 77, 223-238.]
[Luu, J.X.; Jewitt, D.C. (1990) Astron. J. 100, 913-932.]
[Marcialis, R.L.; Buratti, B.J. (1993) Icarus 104, 234-243.]
[Lazzaro, D.; Florczak, M.A.; Angeli, C.A.; Carvano, J.M.; et al. (1997) Planet. Space Sci. 45, 1607-1614.]
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 2016-Feb-09 11:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin