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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2412994812104651 7.5616e-08  
a 2.346805797364262 1.406e-08 AU
q 1.780522775958553 1.8031e-07 AU
i 2.142510991035604 8.0751e-06 deg
node 352.9313642000013 0.00018129 deg
peri 12.13730175580947 0.00018248 deg
M 200.3873427688246 1.7954e-05 deg
tp 2457382.709090949709
(2015-Dec-26.20909095)
6.9205e-05 JED
period 1313.1494480311
3.60
1.1801e-05
3.231e-08
d
yr
n .2741500600253644 2.4637e-09 deg/d
Q 2.913088818769969 1.7453e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      438  
   data-arc span      8602 days (23.55 yr)  
   first obs. used      1990-08-16  
   last obs. used      2014-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56273  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 12:55:36  

Additional Information
 Earth MOID = .777342 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 (675)
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 2014-Apr-16 10:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin