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 ]  
120457 (1990 QZ2)
Classification: Main-belt Asteroid          SPK-ID: 2120457
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2412332334558758 7.4198e-08  
a 2.347066269535557 1.7076e-08 AU
q 1.780875884200275 1.8086e-07 AU
i 2.14237892877553 7.2224e-06 deg
node 352.9282855960424 0.00016468 deg
peri 12.11344353014162 0.0001656 deg
M 255.2463689926634 1.801e-05 deg
tp 2457382.666873875278
(2015-Dec-26.16687388)
6.8915e-05 JED
period 1313.36807394738
3.60
1.4333e-05
3.924e-08
d
yr
n .2741044244497323 2.9914e-09 deg/d
Q 2.91325665487084 2.1196e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      9082 days (24.87 yr)  
   first obs. used      1990-08-16  
   last obs. used      2015-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52751  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 14:44:02  

Additional Information
 Earth MOID = .779149 AU 
 T_jup = 3.520 
[ 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 15.7 mag n/a MPO264156  

120457 (1990 QZ2)          Discovered 1990-Aug-28 by Holt, H. E. at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1990 QZ2 = 2001 QF30 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jul-30 12:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin