Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 (A804 RA)
Classification: Main-belt Asteroid          SPK-ID: 2000003
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 112 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2569364345017789 3.052e-08  
a 2.66828528813587 3.4718e-09 au
q 1.982705579968687 8.1392e-08 au
i 12.99104349619575 3.2231e-06 deg
node 169.8514824901798 1.6646e-05 deg
peri 248.0661932666256 1.7721e-05 deg
M 125.4353546073513 8.1104e-06 deg
tp 2458445.792190021781
(2018-Nov-23.29219002)
3.5288e-05 TDB
period 1592.01376850459
4.36
3.1072e-06
8.507e-09
d
yr
n .2261286975791392 4.4134e-10 deg/d
Q 3.353864996303052 4.3639e-09 au
  Orbit Determination Parameters
   # obs. used (total)      7188  
   data-arc span      78719 days (215.52 yr)  
   first obs. used      1804-10-17  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .33848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 00:55:48  

Additional Information
 Earth MOID = 1.03429 au 
 Jupiter MOID = 2.18899 au 
 T_jup = 3.299 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.33   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 246.596 km 10.594 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.210 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Groeneveld, I.; Kuiper, G.P. (1954) Astrophys. J. 120, 529-546.]
[Chang, Y.C.; Chang, C.-s. (1962) Acta Astron. Sin. 10, 101-111.]
[Gehrels, T.; Owings, D. (1962) Astrophys. J. 135, 906-924.]
[Schroll, A.; Schober, H.J.; Lagerkvist, C.-I. (1981) Astron. Astrophys. 104, 296-299.]
[Magnusson, P. (1986) Icarus 68, 1-39.]
[Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.]
[Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.]
[Birch, P.V.; Taylor, R.C. (1989) Astron. Astrophys. Suppl. Ser. 81, 409-414.]
[Harris, A.W.; Young, J.W.; Bowell, E.; Martin, L.J.; et al. (1989) Icarus 77, 171-186.]
[Erikson, A.; Magnusson, P. (1993) Icarus 103, 62-66.]
[Dotto, E.; De Angelis, G.; Di Martino, M.; Barucci, M.A.; et al. (1995) Icarus 117, 313-327.]
[Kaasalainen, M.; Torppa, J.; Piironen, J. (2002) Icarus 159, 369-395.]
[Behrend, R. (2003) 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.]
[Viikinkoski, M.; Kaasalainen, M.; Durecy, J.; Carry, B.; et al. (2015) Astron. Astrophys. 581, L3.]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.214   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.824   0.024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=19; phase (min.=7.79, mean=16.60, max.=25.79) deg.
U-B UB 0.433   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 (A804 RA)          Discovered 1804-Sep-01 by Harding, K. at Lilienthal
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-13 10:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin