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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
59587 (1999 JJ56)
Classification: Main-belt Asteroid          SPK-ID: 2059587
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024748497117502 3.8018e-08  
a 2.772989835451174 1.5222e-08 au
q 2.211529135265987 1.0632e-07 au
i 12.32432609898237 4.0591e-06 deg
node 210.7314826517944 2.1251e-05 deg
peri 112.8307133483909 2.3466e-05 deg
M 50.90524195023098 9.9731e-06 deg
tp 2458362.004137840696
(2018-Aug-31.50413784)
4.6509e-05 TDB
period 1686.63397104156
4.62
1.3888e-05
3.802e-08
d
yr
n .2134428727162934 1.7575e-09 deg/d
Q 3.334450535636362 1.8304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      9369 days (25.65 yr)  
   first obs. used      1994-04-13  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49988  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:11:44  

Additional Information
 Earth MOID = 1.23404 au 
 Jupiter MOID = 2.20113 au 
 T_jup = 3.273 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO449383  

59587 (1999 JJ56)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JJ56 = 2000 SK259 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-25 20:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin