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 ]  
4340 Dence (1986 JZ)
Classification: Main-belt Asteroid          SPK-ID: 2004340
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2312767589056413 1.1905e-08  
a 2.393598763770967 9.3454e-09 au
q 1.840014999565468 2.7777e-08 au
i 25.15381568283978 9.7551e-07 deg
node 81.01077124437909 2.27e-06 deg
peri 175.7218532348034 5.1263e-06 deg
M 118.7356403328665 4.6033e-06 deg
tp 2458754.377576650779
(2019-Sep-27.87757665)
1.6056e-05 TDB
period 1352.618910004428
3.70
7.9216e-06
2.169e-08
d
yr
n .2661503527248643 1.5587e-09 deg/d
Q 2.947182527976466 1.1507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2413  
   data-arc span      15100 days (41.34 yr)  
   first obs. used      1979-11-16  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36359  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:34:07  

Additional Information
 Earth MOID = .823638 au 
 Jupiter MOID = 2.13504 au 
 T_jup = 3.368 
[ 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 12.63   n/a MPCxxxxx  
diameter diameter 8.110 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.546 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
[Clark, M. (2015) Minor Planet Bull. 42, 163-166.]
geometric albedo albedo 0.155   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B S   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)

4340 Dence (1986 JZ)          Discovered 1986-May-04 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1986 JZ = 1982 KF4 = 1986 LN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-25 08:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin