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 ]  
74631 (1999 RS46)
Classification: Main-belt Asteroid          SPK-ID: 2074631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2330101779309372 3.9941e-08  
a 2.226463829204614 8.2756e-09 au
q 1.707675096204851 9.0417e-08 au
i 6.655758857704865 3.9632e-06 deg
node 134.7981885876275 3.9379e-05 deg
peri 224.2889203497461 4.051e-05 deg
M 306.9567987668107 8.0005e-06 deg
tp 2458779.292426563643
(2019-Oct-22.79242656)
2.6863e-05 TDB
period 1213.450019352114
3.32
6.7655e-06
1.852e-08
d
yr
n .2966747655517046 1.6541e-09 deg/d
Q 2.745252562204377 1.0204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      7441 days (20.37 yr)  
   first obs. used      1999-07-13  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52606  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:49:14  

Additional Information
 Earth MOID = .709931 au 
 Jupiter MOID = 2.70706 au 
 T_jup = 3.601 
[ 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 16.5   n/a MPO436304  

74631 (1999 RS46)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/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 2019-Dec-13 05:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin