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 ]  
59944 (1999 RJ199)
Classification: Main-belt Asteroid          SPK-ID: 2059944
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09490083093613536 5.5656e-08  
a 2.986055409597597 1.9903e-08 au
q 2.702676270005443 1.7203e-07 au
i 9.866505017382233 6.4487e-06 deg
node 337.4765867276082 2.1456e-05 deg
peri 18.44066085385388 3.2671e-05 deg
M 15.32183166524953 2.5494e-05 deg
tp 2458920.285402962308
(2020-Mar-11.78540296)
0.00013325 TDB
period 1884.712974563201
5.16
1.8844e-05
5.159e-08
d
yr
n .191010517176194 1.9097e-09 deg/d
Q 3.269434549189751 2.1792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1050  
   data-arc span      10494 days (28.73 yr)  
   first obs. used      1991-02-08  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57662  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 05:15:17  

Additional Information
 Earth MOID = 1.69925 au 
 Jupiter MOID = 2.15109 au 
 T_jup = 3.228 
[ 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 14.0   n/a MPO436201  

59944 (1999 RJ199)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-07 11:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin