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 ]  
10312 (1990 QT9)
Classification: Main-belt Asteroid          SPK-ID: 2010312
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1314405290426438 4.3099e-08  
a 2.201245583024455 1.1329e-08 AU
q 1.911912699038937 9.4812e-08 AU
i 1.55485594103787 4.9448e-06 deg
node 117.2342288052799 0.00021051 deg
peri 167.940941208998 0.00021258 deg
M 200.9495086815778 3.2652e-05 deg
tp 2457527.527997985684
(2016-May-19.02799799)
0.00010938 JED
period 1192.892129424503
3.27
9.2092e-06
2.521e-08
d
yr
n .3017875557395771 2.3298e-09 deg/d
Q 2.490578467009972 1.2818e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1173  
   data-arc span      13684 days (37.46 yr)  
   first obs. used      1977-09-09  
   last obs. used      2015-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49545  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:21:55  

Additional Information
 Earth MOID = .896839 AU 
 T_jup = 3.653 
[ 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 14.2 mag n/a MPO267748  

10312 (1990 QT9)          Discovered 1990-Aug-23 by Holt, H. E. at Palomar
Reference: 19990402/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QT9 = 1977 RY2 = 1992 AQ2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Apr-02 03:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin