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 ]  
120457 (1990 QZ2)
Classification: Main-belt Asteroid          SPK-ID: 2120457
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .239672895228015 3.082e-08  
a 2.348196745890791 6.3085e-09 au
q 1.785397633238142 7.1615e-08 au
i 2.136918908479114 3.5532e-06 deg
node 352.7871058278247 0.00010659 deg
peri 12.43759692125277 0.0001069 deg
M 82.91513872258226 7.9749e-06 deg
tp 2458697.786715285038
(2019-Aug-02.28671528)
2.8906e-05 TDB
period 1314.317073773477
3.60
5.2964e-06
1.45e-08
d
yr
n .2739065079375559 1.1038e-09 deg/d
Q 2.91099585854344 7.8205e-09 au
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      10774 days (29.50 yr)  
   first obs. used      1990-08-16  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46937  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:09:31  

Additional Information
 Earth MOID = .783658 au 
 Jupiter MOID = 2.55074 au 
 T_jup = 3.519 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO449700  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-01 01:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin