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 ]  
30820 (1990 RU2)
Classification: Main-belt Asteroid          SPK-ID: 2030820
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1723035075533751 7.8452e-08  
a 2.336826396870534 2.3172e-08 AU
q 1.934183012146426 1.8611e-07 AU
i 6.076883730951521 9.9834e-06 deg
node 348.782020490557 7.3802e-05 deg
peri 330.5648653262165 8.0376e-05 deg
M 253.4961526680601 3.841e-05 deg
tp 2457186.512081251419
(2015-Jun-13.01208125)
0.00014243 JED
period 1304.782434923701
3.57
1.9407e-05
5.313e-08
d
yr
n .2759080674020964 4.1039e-09 deg/d
Q 2.739469781594643 2.7165e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      500  
   data-arc span      8578 days (23.49 yr)  
   first obs. used      1990-09-16  
   last obs. used      2014-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62806  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:28:53  

Additional Information
 Earth MOID = .923136 AU 
 T_jup = 3.540 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO250508  

30820 (1990 RU2)          Discovered 1990-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RU2 = 2000 JF24 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-17 18:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin