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 ]  
35831 (1999 JN55)
Classification: Main-belt Asteroid          SPK-ID: 2035831
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1625670016590092 4.5843e-08  
a 2.480736156732418 1.1163e-08 au
q 2.077450317825335 1.1738e-07 au
i 7.050312194973225 4.9955e-06 deg
node 118.5071644883879 4.0094e-05 deg
peri 253.0760894414159 4.3384e-05 deg
M 279.4518759980326 1.8239e-05 deg
tp 2458919.817132707431
(2020-Mar-11.31713271)
7.3328e-05 TDB
period 1427.148914999777
3.91
9.6331e-06
2.637e-08
d
yr
n .2522511815104145 1.7027e-09 deg/d
Q 2.884021995639501 1.2978e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      7917 days (21.68 yr)  
   first obs. used      1998-02-26  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58117  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:39:03  

Additional Information
 Earth MOID = 1.08918 au 
 Jupiter MOID = 2.60104 au 
 T_jup = 3.450 
[ 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 14.4   n/a MPO436016  

35831 (1999 JN55)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

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