Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
44613 Rudolf (1999 RU31)
Classification: Main-belt Asteroid          SPK-ID: 2044613
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02481351777451805 6.2837e-08  
a 2.420644458946881 2.1556e-08 AU
q 2.360579754639014 1.5668e-07 AU
i 7.808800884278328 8.9172e-06 deg
node 220.5999792652913 4.975e-05 deg
peri 78.51360976162638 0.00021856 deg
M 78.46160767791811 0.00020884 deg
tp 2456700.687568233576
(2014-Feb-12.18756823)
0.00079883 JED
period 1375.608767525787
3.77
1.8375e-05
5.031e-08
d
yr
n .2617023157300076 3.4957e-09 deg/d
Q 2.480709163254748 2.2091e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      467  
   data-arc span      6046 days (16.55 yr)  
   first obs. used      1998-05-24  
   last obs. used      2014-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50894  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:55:04  

Additional Information
 Earth MOID = 1.36053 AU 
 T_jup = 3.501 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO309500  

44613 Rudolf           Discovered 1999 Sept. 8 by P. Pravec and P. Kušnirák at Ondřejov.
Rudolf II (1552-1612), of the Habsburg dynasty, was a Czech and Hungarian king and Roman emperor. He created an important center for arts and sciences in Prague, assembled a great artistic collection and employed Tycho Brahe and Johannes Kepler as his court astronomers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12

[ show close-approach data ]
Alternate Designations
 1999 RU31 = 2001 BS48 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-04 02:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin