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
JPL Small-Body Database Browser
Search: [ help ]  
30820 (1990 RU2)
Classification: Main-belt Asteroid          SPK-ID: 2030820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1715420156700783 3.9395e-08  
a 2.33774806429035 9.4988e-09 au
q 1.93672604921316 9.1803e-08 au
i 6.072194990306304 4.7208e-06 deg
node 348.7165525893593 3.0643e-05 deg
peri 330.516877241571 3.29e-05 deg
M 195.5103760546886 1.3071e-05 deg
tp 2459797.028218943455
(2022-Aug-05.52821894)
4.8831e-05 TDB
period 1305.55443965902
3.57
7.9572e-06
2.179e-08
d
yr
n .2757449165383127 1.6806e-09 deg/d
Q 2.738770079367541 1.1128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1394  
   data-arc span      11148 days (30.52 yr)  
   first obs. used      1990-09-15  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54366  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:41  

Additional Information
 Earth MOID = .924773 au 
 Jupiter MOID = 2.57335 au 
 T_jup = 3.539 
[ 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 14.99   n/a MPCxxxxx  

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

Alternate Designations
 1990 RU2 = 2000 JF24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-21 09:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin