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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
312957 (1997 JQ9)
Classification: Main-belt Asteroid          SPK-ID: 2312957
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186422199830151 5.2506e-08  
a 3.092777312235016 4.1007e-08 au
q 2.725843345998351 1.7333e-07 au
i 14.05423584240619 1.3944e-05 deg
node 133.4655732458951 2.4892e-05 deg
peri 96.55424057013988 9.7297e-05 deg
M 17.36473360614973 8.7776e-05 deg
tp 2458504.673190786511
(2019-Jan-21.17319079)		 0.00048347 TDB
period 1986.65018993662
5.44		 3.9512e-05
1.082e-07		 d
yr
n .1812095565810129 3.604e-09 deg/d
Q 3.45971127847168 4.5873e-08 au
   Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1997-05-06  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43059  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:35  

Additional Information
 Earth MOID = 1.76111 au 
 Jupiter MOID = 1.76339 au 
 T_jup = 3.168 
[ 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 16.1   n/a MPO437381  

312957 (1997 JQ9)          Discovered 1997-May-06 by Spacewatch at Kitt Peak
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 08:56 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin