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 ]  
89 Julia
Classification: Main-belt Asteroid          SPK-ID: 2000089
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1839816092882166 3.6392e-08  
a 2.550954194301216 4.546e-09 au
q 2.081625536413152 9.378e-08 au
i 16.12828371502225 3.0604e-06 deg
node 311.5764927503112 1.5435e-05 deg
peri 45.39104237853086 1.7515e-05 deg
M 207.02178380264 8.1704e-06 deg
tp 2458032.882013691321
(2017-Oct-06.38201369)
3.3885e-05 JED
period 1488.169561574509
4.07
3.978e-06
1.089e-08
d
yr
n .2419079178175864 6.4665e-10 deg/d
Q 3.020282852189279 5.3824e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1723  
   data-arc span      54349 days (148.80 yr)  
   first obs. used      1866-08-07  
   last obs. used      2015-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60903  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 13:53:58  

Additional Information
 Earth MOID = 1.1018 au 
 Jupiter MOID = 2.45559 au 
 T_jup = 3.362 
[ 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 6.60 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
magnitude slope G 0.15   n/a PDS3 (MPC 17257) Fit
diameter diameter 151.46 km 3.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
rotation period rot_per 11.387 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Schober, H.J.; Lustig, G. (1975) Icarus 25, 339-343.]
[Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2007) Planet. Space Sci. 55, 986-997.]
[Ditteon, R.; Hawkins, S. (2007) Minor Planet Bul. 34, 59-64.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
geometric albedo albedo 0.1764   0.007 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 10
B-V BV .859 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=8; phase (min.=4.36, mean=12.82, max.=24.83) deg.
U-B UB .442 mag .027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=8; phase (min.=4.36, mean=12.82, max.=24.83) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B K   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)

89 Julia          Discovered 1866-Aug-06 by Stephan, E. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A893 EA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-07 05:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin