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 ]  
18350 (1990 QJ2)
Classification: Main-belt Asteroid          SPK-ID: 2018350
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598335883250346 5.544e-08  
a 2.192306178598445 1.153e-08 AU
q 1.841902015365912 1.1901e-07 AU
i 1.546669414949606 5.6255e-06 deg
node 34.15715645770707 0.00019902 deg
peri 1.159413019378413 0.00019977 deg
M 74.37244279858599 1.7404e-05 deg
tp 2456555.559960134676
(2013-Sep-20.05996013)
5.7371e-05 JED
period 1185.632890804996
3.25
9.3531e-06
2.561e-08
d
yr
n .3036353012740519 2.3953e-09 deg/d
Q 2.542710341830979 1.3372e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      8610 days (23.57 yr)  
   first obs. used      1990-08-22  
   last obs. used      2014-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53591  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:05:34  

Additional Information
 Earth MOID = .847257 AU 
 T_jup = 3.654 
[ 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 15.6 mag n/a MPO279707  

18350 (1990 QJ2)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar (675)
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QJ2 = 1995 CJ7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-28 18:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin