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 ]  
3 Juno
Classification: Main-belt Asteroid          SPK-ID: 2000003
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 102 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2554482627817375 2.0266e-08  
a 2.670700240558908 2.06e-09 AU
q 1.988474503697366 5.4099e-08 AU
i 12.98166179450518 2.4284e-06 deg
node 169.8711811946533 1.1408e-05 deg
peri 248.4099652667037 1.2468e-05 deg
M 33.07715332505229 6.5107e-06 deg
tp 2456854.025585464543
(2014-Jul-15.52558546)
2.8755e-05 JED
period 1594.175554183099
4.36
1.8444e-06
5.05e-09
d
yr
n .2258220552029944 2.6127e-10 deg/d
Q 3.35292597742045 2.5862e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      6611  
   data-arc span      69075 days (189.12 yr)  
   first obs. used      1824-04-18  
   last obs. used      2013-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51434  
   data source      ORB  
   producer      Davide Farnocchia  
   solution date      2013-Jul-16 08:46:47  

Additional Information
 Earth MOID = 1.03987 AU 
 T_jup = 3.298 
[ 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 5.33 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23
magnitude slope G 0.32   n/a PDS3 (MPC 17257) Fit
diameter diameter 233.92 km 11.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23
rotation period rot_per 7.210 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.]
[Harris, A.W.; Young, J.W.; Bowell, E.; Martin, L.J.; et al. (1989) Icarus 77, 171-186.]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.2383   0.025 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23
B-V BV .824 mag .024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=19; phase (min.=7.79, mean=16.60, max.=25.79) deg.
U-B UB .433 mag .030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=18; phase (min.=7.79, mean=16.62, max.=25.79) 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 Sk   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)

3 Juno          Discovered 1804-Sep-01 by Harding, K. at Lilienthal
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Sep-03 06:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin